1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999 Free Software Foundation.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
25 When using Emacs with X, the display style of characters can be
26 changed by defining `faces'. Each face can specify the following
29 1. Font family or fontset alias name.
31 2. Relative proportionate width, aka character set width or set
32 width (swidth), e.g. `semi-compressed'.
34 3. Font height in 1/10pt
36 4. Font weight, e.g. `bold'.
38 5. Font slant, e.g. `italic'.
44 8. Whether or not characters should be underlined, and in what color.
46 9. Whether or not characters should be displayed in inverse video.
48 10. A background stipple, a bitmap.
50 11. Whether or not characters should be overlined, and in what color.
52 12. Whether or not characters should be strike-through, and in what
55 13. Whether or not a box should be drawn around characters, the box
56 type, and, for simple boxes, in what color.
58 Faces are frame-local by nature because Emacs allows to define the
59 same named face (face names are symbols) differently for different
60 frames. Each frame has an alist of face definitions for all named
61 faces. The value of a named face in such an alist is a Lisp vector
62 with the symbol `face' in slot 0, and a slot for each each of the
63 face attributes mentioned above.
65 There is also a global face alist `Vface_new_frame_defaults'. Face
66 definitions from this list are used to initialize faces of newly
69 A face doesn't have to specify all attributes. Those not specified
70 have a value of `unspecified'. Faces specifying all attributes are
71 called `fully-specified'.
76 The display style of a given character in the text is determined by
77 combining several faces. This process is called `face merging'.
78 Any aspect of the display style that isn't specified by overlays or
79 text properties is taken from the `default' face. Since it is made
80 sure that the default face is always fully-specified, face merging
81 always results in a fully-specified face.
86 After all face attributes for a character have been determined by
87 merging faces of that character, that face is `realized'. The
88 realization process maps face attributes to what is physically
89 available on the system where Emacs runs. The result is a
90 `realized face' in form of a struct face which is stored in the
91 face cache of the frame on which it was realized.
93 Face realization is done in the context of the charset of the
94 character to display because different fonts and encodings are used
95 for different charsets. In other words, for characters of
96 different charsets, different realized faces are needed to display
99 Faces are always realized for a specific character set and contain
100 a specific font, even if the face being realized specifies a
101 fontset (see `font selection' below). The reason is that the
102 result of the new font selection stage is better than what can be
103 done with statically defined font name patterns in fontsets.
108 In unibyte text, Emacs' charsets aren't applicable; function
109 `char-charset' reports CHARSET_ASCII for all characters, including
110 those > 0x7f. The X registry and encoding of fonts to use is
111 determined from the variable `x-unibyte-registry-and-encoding' in
112 this case. The variable is initialized at Emacs startup time from
113 the font the user specified for Emacs.
115 Currently all unibyte text, i.e. all buffers with
116 enable_multibyte_characters nil are displayed with fonts of the
117 same registry and encoding `x-unibyte-registry-and-encoding'. This
118 is consistent with the fact that languages can also be set
124 Font selection tries to find the best available matching font for a
125 given (charset, face) combination. This is done slightly
126 differently for faces specifying a fontset, or a font family name.
128 If the face specifies a fontset alias name, that fontset determines
129 a pattern for fonts of the given charset. If the face specifies a
130 font family, a font pattern is constructed. Charset symbols have a
131 property `x-charset-registry' for that purpose that maps a charset
132 to an XLFD registry and encoding in the font pattern constructed.
134 Available fonts on the system on which Emacs runs are then matched
135 against the font pattern. The result of font selection is the best
136 match for the given face attributes in this font list.
138 Font selection can be influenced by the user.
140 1. The user can specify the relative importance he gives the face
141 attributes width, height, weight, and slant by setting
142 face-font-selection-order (faces.el) to a list of face attribute
143 names. The default is '(:width :height :weight :slant), and means
144 that font selection first tries to find a good match for the font
145 width specified by a face, then---within fonts with that
146 width---tries to find a best match for the specified font height,
149 2. Setting face-alternative-font-family-alist allows the user to
150 specify alternative font families to try if a family specified by a
154 Composite characters.
156 Realized faces for composite characters are the only ones having a
157 fontset id >= 0. When a composite character is encoded into a
158 sequence of non-composite characters (in xterm.c), a suitable font
159 for the non-composite characters is then selected and realized,
160 i.e. the realization process is delayed but in principle the same.
163 Initialization of basic faces.
165 The faces `default', `modeline' are considered `basic faces'.
166 When redisplay happens the first time for a newly created frame,
167 basic faces are realized for CHARSET_ASCII. Frame parameters are
168 used to fill in unspecified attributes of the default face. */
170 /* Define SCALABLE_FONTS to a non-zero value to enable scalable
171 font use. Define it to zero to disable scalable font use.
173 Use of too many or too large scalable fonts can crash XFree86
174 servers. That's why I've put the code dealing with scalable fonts
177 #define SCALABLE_FONTS 1
180 #include <sys/types.h>
181 #include <sys/stat.h>
186 #ifdef HAVE_X_WINDOWS
191 #include <Xm/XmStrDefs.h>
192 #endif /* USE_MOTIF */
200 #include "dispextern.h"
201 #include "blockinput.h"
203 #include "intervals.h"
205 #ifdef HAVE_X_WINDOWS
207 /* Compensate for a bug in Xos.h on some systems, on which it requires
208 time.h. On some such systems, Xos.h tries to redefine struct
209 timeval and struct timezone if USG is #defined while it is
212 #ifdef XOS_NEEDS_TIME_H
218 #else /* not XOS_NEEDS_TIME_H */
220 #endif /* not XOS_NEEDS_TIME_H */
222 #endif /* HAVE_X_WINDOWS */
226 #include "keyboard.h"
229 #define max(A, B) ((A) > (B) ? (A) : (B))
230 #define min(A, B) ((A) < (B) ? (A) : (B))
231 #define abs(X) ((X) < 0 ? -(X) : (X))
234 /* Non-zero if face attribute ATTR is unspecified. */
236 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
238 /* Value is the number of elements of VECTOR. */
240 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
242 /* Make a copy of string S on the stack using alloca. Value is a pointer
245 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
247 /* Make a copy of the contents of Lisp string S on the stack using
248 alloca. Value is a pointer to the copy. */
250 #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data)
252 /* Size of hash table of realized faces in face caches (should be a
255 #define FACE_CACHE_BUCKETS_SIZE 1001
257 /* A definition of XColor for non-X frames. */
258 #ifndef HAVE_X_WINDOWS
261 unsigned short red
, green
, blue
;
267 /* Keyword symbols used for face attribute names. */
269 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
270 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
271 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
272 Lisp_Object QCreverse_video
;
273 Lisp_Object QCoverline
, QCstrike_through
, QCbox
;
275 /* Symbols used for attribute values. */
277 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
278 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
279 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
280 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
281 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
282 Lisp_Object Qultra_expanded
;
283 Lisp_Object Qreleased_button
, Qpressed_button
;
284 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
285 Lisp_Object Qunspecified
;
287 /* The symbol `x-charset-registry'. This property of charsets defines
288 the X registry and encoding that fonts should have that are used to
289 display characters of that charset. */
291 Lisp_Object Qx_charset_registry
;
293 /* The name of the function to call when the background of the frame
294 has changed, frame_update_face_colors. */
296 Lisp_Object Qframe_update_face_colors
;
298 /* Names of basic faces. */
300 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
301 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
302 extern Lisp_Object Qmode_line
;
304 /* The symbol `face-alias'. A symbols having that property is an
305 alias for another face. Value of the property is the name of
308 Lisp_Object Qface_alias
;
310 /* Names of frame parameters related to faces. */
312 extern Lisp_Object Qscroll_bar_foreground
, Qscroll_bar_background
;
313 extern Lisp_Object Qborder_color
, Qcursor_color
, Qmouse_color
;
315 /* Default stipple pattern used on monochrome displays. This stipple
316 pattern is used on monochrome displays instead of shades of gray
317 for a face background color. See `set-face-stipple' for possible
318 values for this variable. */
320 Lisp_Object Vface_default_stipple
;
322 /* Default registry and encoding to use for charsets whose charset
323 symbols don't specify one. */
325 Lisp_Object Vface_default_registry
;
327 /* Alist of alternative font families. Each element is of the form
328 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
329 try FAMILY1, then FAMILY2, ... */
331 Lisp_Object Vface_alternative_font_family_alist
;
333 /* Allowed scalable fonts. A value of nil means don't allow any
334 scalable fonts. A value of t means allow the use of any scalable
335 font. Otherwise, value must be a list of regular expressions. A
336 font may be scaled if its name matches a regular expression in the
340 Lisp_Object Vscalable_fonts_allowed
;
343 /* Maximum number of fonts to consider in font_list. If not an
344 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
346 Lisp_Object Vfont_list_limit
;
347 #define DEFAULT_FONT_LIST_LIMIT 100
349 /* The symbols `foreground-color' and `background-color' which can be
350 used as part of a `face' property. This is for compatibility with
353 Lisp_Object Qforeground_color
, Qbackground_color
;
355 /* The symbols `face' and `mouse-face' used as text properties. */
358 extern Lisp_Object Qmouse_face
;
360 /* Error symbol for wrong_type_argument in load_pixmap. */
362 Lisp_Object Qbitmap_spec_p
;
364 /* Alist of global face definitions. Each element is of the form
365 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
366 is a Lisp vector of face attributes. These faces are used
367 to initialize faces for new frames. */
369 Lisp_Object Vface_new_frame_defaults
;
371 /* The next ID to assign to Lisp faces. */
373 static int next_lface_id
;
375 /* A vector mapping Lisp face Id's to face names. */
377 static Lisp_Object
*lface_id_to_name
;
378 static int lface_id_to_name_size
;
380 /* tty color-related functions (defined on lisp/term/tty-colors.el). */
381 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
;
383 /* Counter for calls to clear_face_cache. If this counter reaches
384 CLEAR_FONT_TABLE_COUNT, and a frame has more than
385 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
387 static int clear_font_table_count
;
388 #define CLEAR_FONT_TABLE_COUNT 100
389 #define CLEAR_FONT_TABLE_NFONTS 10
391 /* Non-zero means face attributes have been changed since the last
392 redisplay. Used in redisplay_internal. */
394 int face_change_count
;
396 /* The total number of colors currently allocated. */
399 static int ncolors_allocated
;
400 static int npixmaps_allocated
;
406 /* Function prototypes. */
411 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
412 static int may_use_scalable_font_p
P_ ((struct font_name
*, char *));
413 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
414 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
416 static int first_font_matching
P_ ((struct frame
*f
, char *,
417 struct font_name
*));
418 static int x_face_list_fonts
P_ ((struct frame
*, char *,
419 struct font_name
*, int, int, int));
420 static int font_scalable_p
P_ ((struct font_name
*));
421 static Lisp_Object deduce_unibyte_registry
P_ ((struct frame
*, char *));
422 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
423 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
424 static char *xstrdup
P_ ((char *));
425 static unsigned char *xstrlwr
P_ ((unsigned char *));
426 static void signal_error
P_ ((char *, Lisp_Object
));
427 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
428 static void load_face_font_or_fontset
P_ ((struct frame
*, struct face
*, char *, int));
429 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
430 static void free_face_colors
P_ ((struct frame
*, struct face
*));
431 static int face_color_gray_p
P_ ((struct frame
*, char *));
432 static char *build_font_name
P_ ((struct font_name
*));
433 static void free_font_names
P_ ((struct font_name
*, int));
434 static int sorted_font_list
P_ ((struct frame
*, char *,
435 int (*cmpfn
) P_ ((const void *, const void *)),
436 struct font_name
**));
437 static int font_list
P_ ((struct frame
*, char *, char *, char *, struct font_name
**));
438 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*, char *, char *, char *,
439 struct font_name
**));
440 static int cmp_font_names
P_ ((const void *, const void *));
441 static struct face
*realize_face
P_ ((struct face_cache
*,
442 Lisp_Object
*, int));
443 static struct face
*realize_x_face
P_ ((struct face_cache
*,
444 Lisp_Object
*, int));
445 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
446 Lisp_Object
*, int));
447 static int realize_basic_faces
P_ ((struct frame
*));
448 static int realize_default_face
P_ ((struct frame
*));
449 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
450 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
451 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
452 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
453 static unsigned lface_hash
P_ ((Lisp_Object
*));
454 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
455 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
456 static void free_realized_face
P_ ((struct frame
*, struct face
*));
457 static void clear_face_gcs
P_ ((struct face_cache
*));
458 static void free_face_cache
P_ ((struct face_cache
*));
459 static int face_numeric_weight
P_ ((Lisp_Object
));
460 static int face_numeric_slant
P_ ((Lisp_Object
));
461 static int face_numeric_swidth
P_ ((Lisp_Object
));
462 static int face_fontset
P_ ((struct frame
*, Lisp_Object
*));
463 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int,
465 static char *choose_face_fontset_font
P_ ((struct frame
*, Lisp_Object
*,
467 static void merge_face_vectors
P_ ((Lisp_Object
*from
, Lisp_Object
*));
468 static void merge_face_vector_with_property
P_ ((struct frame
*, Lisp_Object
*,
470 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
, char *,
472 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
473 static struct face
*make_realized_face
P_ ((Lisp_Object
*, int, Lisp_Object
));
474 static void free_realized_faces
P_ ((struct face_cache
*));
475 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
476 struct font_name
*, int));
477 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
478 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
479 static int xlfd_numeric_slant
P_ ((struct font_name
*));
480 static int xlfd_numeric_weight
P_ ((struct font_name
*));
481 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
482 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
483 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
484 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
485 static int xlfd_fixed_p
P_ ((struct font_name
*));
486 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
488 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
489 struct font_name
*, int, int));
490 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
491 struct font_name
*, int));
493 #ifdef HAVE_X_WINDOWS
495 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
496 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
497 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
498 int (*cmpfn
) P_ ((const void *, const void *))));
499 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
500 static void x_free_gc
P_ ((struct frame
*, GC
));
501 static void clear_font_table
P_ ((struct frame
*));
503 #endif /* HAVE_X_WINDOWS */
506 /***********************************************************************
508 ***********************************************************************/
510 #ifdef HAVE_X_WINDOWS
512 /* Create and return a GC for use on frame F. GC values and mask
513 are given by XGCV and MASK. */
516 x_create_gc (f
, mask
, xgcv
)
523 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
530 /* Free GC which was used on frame F. */
538 xassert (--ngcs
>= 0);
539 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
543 #endif /* HAVE_X_WINDOWS */
546 /* Like strdup, but uses xmalloc. */
552 int len
= strlen (s
) + 1;
553 char *p
= (char *) xmalloc (len
);
559 /* Like stricmp. Used to compare parts of font names which are in
564 unsigned char *s1
, *s2
;
568 unsigned char c1
= tolower (*s1
);
569 unsigned char c2
= tolower (*s2
);
571 return c1
< c2
? -1 : 1;
576 return *s2
== 0 ? 0 : -1;
581 /* Like strlwr, which might not always be available. */
583 static unsigned char *
587 unsigned char *p
= s
;
596 /* Signal `error' with message S, and additional argument ARG. */
599 signal_error (s
, arg
)
603 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
607 /* If FRAME is nil, return a pointer to the selected frame.
608 Otherwise, check that FRAME is a live frame, and return a pointer
609 to it. NPARAM is the parameter number of FRAME, for
610 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
611 Lisp function definitions. */
613 static INLINE
struct frame
*
614 frame_or_selected_frame (frame
, nparam
)
619 frame
= selected_frame
;
621 CHECK_LIVE_FRAME (frame
, nparam
);
622 return XFRAME (frame
);
626 /***********************************************************************
628 ***********************************************************************/
630 /* Initialize face cache and basic faces for frame F. */
636 /* Make a face cache, if F doesn't have one. */
637 if (FRAME_FACE_CACHE (f
) == NULL
)
638 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
640 #ifdef HAVE_X_WINDOWS
641 /* Make the image cache. */
644 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
645 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
646 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
648 #endif /* HAVE_X_WINDOWS */
650 /* Realize basic faces. Must have enough information in frame
651 parameters to realize basic faces at this point. */
652 #ifdef HAVE_X_WINDOWS
653 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
655 if (!realize_basic_faces (f
))
660 /* Free face cache of frame F. Called from Fdelete_frame. */
666 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
670 free_face_cache (face_cache
);
671 FRAME_FACE_CACHE (f
) = NULL
;
674 #ifdef HAVE_X_WINDOWS
677 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
680 --image_cache
->refcount
;
681 if (image_cache
->refcount
== 0)
682 free_image_cache (f
);
685 #endif /* HAVE_X_WINDOWS */
689 /* Clear face caches, and recompute basic faces for frame F. Call
690 this after changing frame parameters on which those faces depend,
691 or when realized faces have been freed due to changing attributes
695 recompute_basic_faces (f
)
698 if (FRAME_FACE_CACHE (f
))
700 clear_face_cache (0);
701 if (!realize_basic_faces (f
))
707 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
708 try to free unused fonts, too. */
711 clear_face_cache (clear_fonts_p
)
714 #ifdef HAVE_X_WINDOWS
715 Lisp_Object tail
, frame
;
719 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
721 /* From time to time see if we can unload some fonts. This also
722 frees all realized faces on all frames. Fonts needed by
723 faces will be loaded again when faces are realized again. */
724 clear_font_table_count
= 0;
726 FOR_EACH_FRAME (tail
, frame
)
730 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
732 free_all_realized_faces (frame
);
733 clear_font_table (f
);
739 /* Clear GCs of realized faces. */
740 FOR_EACH_FRAME (tail
, frame
)
745 clear_face_gcs (FRAME_FACE_CACHE (f
));
746 clear_image_cache (f
, 0);
750 #endif /* HAVE_X_WINDOWS */
754 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
755 "Clear face caches on all frames.\n\
756 Optional THOROUGHLY non-nil means try to free unused fonts, too.")
758 Lisp_Object thorougly
;
760 clear_face_cache (!NILP (thorougly
));
766 #ifdef HAVE_X_WINDOWS
769 /* Remove those fonts from the font table of frame F that are not used
770 by fontsets. Called from clear_face_cache from time to time. */
776 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
778 Lisp_Object rest
, frame
;
781 xassert (FRAME_X_P (f
));
783 used
= (char *) alloca (dpyinfo
->n_fonts
* sizeof *used
);
784 bzero (used
, dpyinfo
->n_fonts
* sizeof *used
);
786 /* For all frames with the same x_display_info as F, record
787 in `used' those fonts that are in use by fontsets. */
788 FOR_EACH_FRAME (rest
, frame
)
789 if (FRAME_X_DISPLAY_INFO (XFRAME (frame
)) == dpyinfo
)
791 struct frame
*f
= XFRAME (frame
);
792 struct fontset_data
*fontset_data
= FRAME_FONTSET_DATA (f
);
794 for (i
= 0; i
< fontset_data
->n_fontsets
; ++i
)
796 struct fontset_info
*info
= fontset_data
->fontset_table
[i
];
799 for (j
= 0; j
<= MAX_CHARSET
; ++j
)
801 int idx
= info
->font_indexes
[j
];
808 /* Free those fonts that are not used by fontsets. */
809 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
810 if (used
[i
] == 0 && dpyinfo
->font_table
[i
].name
)
812 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
814 /* Free names. In xfns.c there is a comment that full_name
815 should never be freed because it is always shared with
816 something else. I don't think this is true anymore---see
817 x_load_font. It's either equal to font_info->name or
818 allocated via xmalloc, and there seems to be no place in
819 the source files where full_name is transferred to another
821 if (font_info
->full_name
!= font_info
->name
)
822 xfree (font_info
->full_name
);
823 xfree (font_info
->name
);
827 XFreeFont (dpyinfo
->display
, font_info
->font
);
830 /* Mark font table slot free. */
831 font_info
->font
= NULL
;
832 font_info
->name
= font_info
->full_name
= NULL
;
837 #endif /* HAVE_X_WINDOWS */
841 /***********************************************************************
843 ***********************************************************************/
845 #ifdef HAVE_X_WINDOWS
847 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
848 "Value is non-nil if OBJECT is a valid bitmap specification.\n\
849 A bitmap specification is either a string, a file name, or a list\n\
850 (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\
851 HEIGHT is its height, and DATA is a string containing the bits of\n\
852 the pixmap. Bits are stored row by row, each row occupies\n\
853 (WIDTH + 7)/8 bytes.")
859 if (STRINGP (object
))
860 /* If OBJECT is a string, it's a file name. */
862 else if (CONSP (object
))
864 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
865 HEIGHT must be integers > 0, and DATA must be string large
866 enough to hold a bitmap of the specified size. */
867 Lisp_Object width
, height
, data
;
869 height
= width
= data
= Qnil
;
873 width
= XCAR (object
);
874 object
= XCDR (object
);
877 height
= XCAR (object
);
878 object
= XCDR (object
);
880 data
= XCAR (object
);
884 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
886 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
888 if (STRING_BYTES (XSTRING (data
)) >= bytes_per_row
* height
)
893 return pixmap_p
? Qt
: Qnil
;
897 /* Load a bitmap according to NAME (which is either a file name or a
898 pixmap spec) for use on frame F. Value is the bitmap_id (see
899 xfns.c). If NAME is nil, return with a bitmap id of zero. If
900 bitmap cannot be loaded, display a message saying so, and return
901 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
902 if these pointers are not null. */
905 load_pixmap (f
, name
, w_ptr
, h_ptr
)
908 unsigned int *w_ptr
, *h_ptr
;
916 tem
= Fbitmap_spec_p (name
);
918 wrong_type_argument (Qbitmap_spec_p
, name
);
923 /* Decode a bitmap spec into a bitmap. */
928 w
= XINT (Fcar (name
));
929 h
= XINT (Fcar (Fcdr (name
)));
930 bits
= Fcar (Fcdr (Fcdr (name
)));
932 bitmap_id
= x_create_bitmap_from_data (f
, XSTRING (bits
)->data
,
937 /* It must be a string -- a file name. */
938 bitmap_id
= x_create_bitmap_from_file (f
, name
);
944 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
955 ++npixmaps_allocated
;
958 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
961 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
967 #endif /* HAVE_X_WINDOWS */
971 /***********************************************************************
973 ***********************************************************************/
975 #ifdef HAVE_X_WINDOWS
977 /* Update the line_height of frame F. Return non-zero if line height
981 frame_update_line_height (f
)
984 int fontset
, line_height
, changed_p
;
986 fontset
= f
->output_data
.x
->fontset
;
988 line_height
= FRAME_FONTSET_DATA (f
)->fontset_table
[fontset
]->height
;
990 line_height
= FONT_HEIGHT (f
->output_data
.x
->font
);
992 changed_p
= line_height
!= f
->output_data
.x
->line_height
;
993 f
->output_data
.x
->line_height
= line_height
;
997 #endif /* HAVE_X_WINDOWS */
1000 /***********************************************************************
1002 ***********************************************************************/
1004 #ifdef HAVE_X_WINDOWS
1006 /* Load font or fontset of face FACE which is used on frame F.
1007 FONTSET is the fontset FACE should use or -1, if FACE doesn't use a
1008 fontset. FONT_NAME is the name of the font to load, if no fontset
1009 is used. It is null if no suitable font name could be determined
1013 load_face_font_or_fontset (f
, face
, font_name
, fontset
)
1019 struct font_info
*font_info
= NULL
;
1021 face
->font_info_id
= -1;
1022 face
->fontset
= fontset
;
1027 font_info
= FS_LOAD_FONT (f
, FRAME_X_FONT_TABLE (f
), CHARSET_ASCII
,
1030 font_info
= FS_LOAD_FONT (f
, FRAME_X_FONT_TABLE (f
), face
->charset
,
1039 face
->font_info_id
= FONT_INFO_ID (f
, font_info
);
1040 face
->font
= font_info
->font
;
1041 face
->font_name
= font_info
->full_name
;
1043 /* Make the registry part of the font name readily accessible.
1044 The registry is used to find suitable faces for unibyte text. */
1045 s
= font_info
->full_name
+ strlen (font_info
->full_name
);
1047 while (i
< 2 && --s
>= font_info
->full_name
)
1051 if (!STRINGP (face
->registry
)
1052 || xstricmp (XSTRING (face
->registry
)->data
, s
+ 1) != 0)
1054 if (STRINGP (Vface_default_registry
)
1055 && !xstricmp (XSTRING (Vface_default_registry
)->data
, s
+ 1))
1056 face
->registry
= Vface_default_registry
;
1058 face
->registry
= build_string (s
+ 1);
1061 else if (fontset
>= 0)
1062 add_to_log ("Unable to load ASCII font of fontset %d",
1063 make_number (fontset
), Qnil
);
1065 add_to_log ("Unable to load font %s",
1066 build_string (font_name
), Qnil
);
1069 #endif /* HAVE_X_WINDOWS */
1073 /***********************************************************************
1075 ***********************************************************************/
1077 /* A version of defined_color for non-X frames. */
1079 tty_defined_color (f
, color_name
, color_def
, alloc
)
1085 Lisp_Object color_desc
;
1086 int color_idx
= FACE_TTY_DEFAULT_COLOR
, red
= 0, green
= 0, blue
= 0;
1089 if (*color_name
&& !NILP (Ffboundp (Qtty_color_desc
)))
1092 color_desc
= call1 (Qtty_color_desc
, build_string (color_name
));
1093 if (!NILP (color_desc
) && CONSP (color_desc
))
1095 color_idx
= XINT (XCAR (XCDR (color_desc
)));
1096 if (CONSP (XCDR (XCDR (color_desc
))))
1098 red
= XINT (XCAR (XCDR (XCDR (color_desc
))));
1099 green
= XINT (XCAR (XCDR (XCDR (XCDR (color_desc
)))));
1100 blue
= XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc
))))));
1104 else if (NILP (Fsymbol_value (intern ("tty-color-alist"))))
1105 /* We were called early during startup, and the colors are not
1106 yet set up in tty-color-alist. Don't return a failure
1107 indication, since this produces the annoying "Unable to
1108 load color" messages in the *Messages* buffer. */
1111 color_def
->pixel
= (unsigned long) color_idx
;
1112 color_def
->red
= red
;
1113 color_def
->green
= green
;
1114 color_def
->blue
= blue
;
1119 /* Decide if color named COLOR is valid for the display associated
1120 with the frame F; if so, return the rgb values in COLOR_DEF. If
1121 ALLOC is nonzero, allocate a new colormap cell.
1123 This does the right thing for any type of frame. */
1125 defined_color (f
, color_name
, color_def
, alloc
)
1131 if (!FRAME_WINDOW_P (f
))
1132 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1133 #ifdef HAVE_X_WINDOWS
1134 else if (FRAME_X_P (f
))
1135 return x_defined_color (f
, color_name
, color_def
, alloc
);
1138 else if (FRAME_W32_P (f
))
1139 /* FIXME: w32_defined_color doesn't exist! w32fns.c defines
1140 defined_color which needs to be renamed, and the declaration
1141 of color_def therein should be changed. */
1142 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1145 else if (FRAME_MAC_P (f
))
1146 /* FIXME: mac_defined_color doesn't exist! */
1147 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1153 /* Given the index of the tty color, return its name, a Lisp string. */
1156 tty_color_name (f
, idx
)
1162 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1164 Lisp_Object coldesc
= call1 (Qtty_color_by_index
, make_number (idx
));
1166 if (!NILP (coldesc
))
1167 return XCAR (coldesc
);
1170 /* We can have an MSDOG frame under -nw for a short window of
1171 opportunity before internal_terminal_init is called. DTRT. */
1172 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1173 return msdos_stdcolor_name (idx
);
1177 /* FIXME: When/if w32 supports colors in non-window mode, there should
1178 be a call here to a w32-specific function that returns the color
1179 by index using the default color mapping on a Windows console. */
1182 return Qunspecified
;
1185 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1186 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1189 face_color_gray_p (f
, color_name
)
1196 if (defined_color (f
, color_name
, &color
, 0))
1197 gray_p
= ((abs (color
.red
- color
.green
)
1198 < max (color
.red
, color
.green
) / 20)
1199 && (abs (color
.green
- color
.blue
)
1200 < max (color
.green
, color
.blue
) / 20)
1201 && (abs (color
.blue
- color
.red
)
1202 < max (color
.blue
, color
.red
) / 20));
1210 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1211 BACKGROUND_P non-zero means the color will be used as background
1215 face_color_supported_p (f
, color_name
, background_p
)
1223 XSETFRAME (frame
, f
);
1224 return ((FRAME_WINDOW_P (f
)
1225 && (!NILP (Fxw_display_color_p (frame
))
1226 || xstricmp (color_name
, "black") == 0
1227 || xstricmp (color_name
, "white") == 0
1229 && face_color_gray_p (f
, color_name
))
1230 || (!NILP (Fx_display_grayscale_p (frame
))
1231 && face_color_gray_p (f
, color_name
))))
1232 || tty_defined_color (f
, color_name
, ¬_used
, 0));
1236 DEFUN ("face-color-gray-p", Fface_color_gray_p
, Sface_color_gray_p
, 1, 2, 0,
1237 "Return non-nil if COLOR is a shade of gray (or white or black).\n\
1238 FRAME specifies the frame and thus the display for interpreting COLOR.\n\
1239 If FRAME is nil or omitted, use the selected frame.")
1241 Lisp_Object color
, frame
;
1245 CHECK_FRAME (frame
, 0);
1246 CHECK_STRING (color
, 0);
1248 return face_color_gray_p (f
, XSTRING (color
)->data
) ? Qt
: Qnil
;
1252 DEFUN ("face-color-supported-p", Fface_color_supported_p
,
1253 Sface_color_supported_p
, 2, 3, 0,
1254 "Return non-nil if COLOR can be displayed on FRAME.\n\
1255 BACKGROUND-P non-nil means COLOR is used as a background.\n\
1256 If FRAME is nil or omitted, use the selected frame.\n\
1257 COLOR must be a valid color name.")
1258 (frame
, color
, background_p
)
1259 Lisp_Object frame
, color
, background_p
;
1263 CHECK_FRAME (frame
, 0);
1264 CHECK_STRING (color
, 0);
1266 if (face_color_supported_p (f
, XSTRING (color
)->data
, !NILP (background_p
)))
1271 /* Load color with name NAME for use by face FACE on frame F.
1272 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1273 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1274 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1275 pixel color. If color cannot be loaded, display a message, and
1276 return the foreground, background or underline color of F, but
1277 record that fact in flags of the face so that we don't try to free
1281 load_color (f
, face
, name
, target_index
)
1285 enum lface_attribute_index target_index
;
1289 xassert (STRINGP (name
));
1290 xassert (target_index
== LFACE_FOREGROUND_INDEX
1291 || target_index
== LFACE_BACKGROUND_INDEX
1292 || target_index
== LFACE_UNDERLINE_INDEX
1293 || target_index
== LFACE_OVERLINE_INDEX
1294 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1295 || target_index
== LFACE_BOX_INDEX
);
1297 /* if the color map is full, defined_color will return a best match
1298 to the values in an existing cell. */
1299 if (!defined_color (f
, XSTRING (name
)->data
, &color
, 1))
1301 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1303 switch (target_index
)
1305 case LFACE_FOREGROUND_INDEX
:
1306 face
->foreground_defaulted_p
= 1;
1307 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1310 case LFACE_BACKGROUND_INDEX
:
1311 face
->background_defaulted_p
= 1;
1312 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1315 case LFACE_UNDERLINE_INDEX
:
1316 face
->underline_defaulted_p
= 1;
1317 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1320 case LFACE_OVERLINE_INDEX
:
1321 face
->overline_color_defaulted_p
= 1;
1322 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1325 case LFACE_STRIKE_THROUGH_INDEX
:
1326 face
->strike_through_color_defaulted_p
= 1;
1327 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1330 case LFACE_BOX_INDEX
:
1331 face
->box_color_defaulted_p
= 1;
1332 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1341 ++ncolors_allocated
;
1347 #ifdef HAVE_X_WINDOWS
1349 /* Load colors for face FACE which is used on frame F. Colors are
1350 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1351 of ATTRS. If the background color specified is not supported on F,
1352 try to emulate gray colors with a stipple from Vface_default_stipple. */
1355 load_face_colors (f
, face
, attrs
)
1362 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1363 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1365 /* Swap colors if face is inverse-video. */
1366 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1374 /* Check for support for foreground, not for background because
1375 face_color_supported_p is smart enough to know that grays are
1376 "supported" as background because we are supposed to use stipple
1378 if (!face_color_supported_p (f
, XSTRING (bg
)->data
, 0)
1379 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1381 x_destroy_bitmap (f
, face
->stipple
);
1382 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1383 &face
->pixmap_w
, &face
->pixmap_h
);
1386 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1387 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1391 /* Free color PIXEL on frame F. */
1394 unload_color (f
, pixel
)
1396 unsigned long pixel
;
1398 Display
*dpy
= FRAME_X_DISPLAY (f
);
1399 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
1401 if (pixel
== BLACK_PIX_DEFAULT (f
)
1402 || pixel
== WHITE_PIX_DEFAULT (f
))
1407 /* If display has an immutable color map, freeing colors is not
1408 necessary and some servers don't allow it. So don't do it. */
1409 if (! (class == StaticColor
|| class == StaticGray
|| class == TrueColor
))
1411 Colormap cmap
= DefaultColormapOfScreen (FRAME_X_SCREEN (f
));
1412 XFreeColors (dpy
, cmap
, &pixel
, 1, 0);
1419 /* Free colors allocated for FACE. */
1422 free_face_colors (f
, face
)
1426 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
1428 /* If display has an immutable color map, freeing colors is not
1429 necessary and some servers don't allow it. So don't do it. */
1430 if (class != StaticColor
1431 && class != StaticGray
1432 && class != TrueColor
)
1438 dpy
= FRAME_X_DISPLAY (f
);
1439 cmap
= DefaultColormapOfScreen (FRAME_X_SCREEN (f
));
1441 if (face
->foreground
!= BLACK_PIX_DEFAULT (f
)
1442 && face
->foreground
!= WHITE_PIX_DEFAULT (f
)
1443 && !face
->foreground_defaulted_p
)
1445 XFreeColors (dpy
, cmap
, &face
->foreground
, 1, 0);
1446 IF_DEBUG (--ncolors_allocated
);
1449 if (face
->background
!= BLACK_PIX_DEFAULT (f
)
1450 && face
->background
!= WHITE_PIX_DEFAULT (f
)
1451 && !face
->background_defaulted_p
)
1453 XFreeColors (dpy
, cmap
, &face
->background
, 1, 0);
1454 IF_DEBUG (--ncolors_allocated
);
1457 if (face
->underline_p
1458 && !face
->underline_defaulted_p
1459 && face
->underline_color
!= BLACK_PIX_DEFAULT (f
)
1460 && face
->underline_color
!= WHITE_PIX_DEFAULT (f
))
1462 XFreeColors (dpy
, cmap
, &face
->underline_color
, 1, 0);
1463 IF_DEBUG (--ncolors_allocated
);
1466 if (face
->overline_p
1467 && !face
->overline_color_defaulted_p
1468 && face
->overline_color
!= BLACK_PIX_DEFAULT (f
)
1469 && face
->overline_color
!= WHITE_PIX_DEFAULT (f
))
1471 XFreeColors (dpy
, cmap
, &face
->overline_color
, 1, 0);
1472 IF_DEBUG (--ncolors_allocated
);
1475 if (face
->strike_through_p
1476 && !face
->strike_through_color_defaulted_p
1477 && face
->strike_through_color
!= BLACK_PIX_DEFAULT (f
)
1478 && face
->strike_through_color
!= WHITE_PIX_DEFAULT (f
))
1480 XFreeColors (dpy
, cmap
, &face
->strike_through_color
, 1, 0);
1481 IF_DEBUG (--ncolors_allocated
);
1484 if (face
->box
!= FACE_NO_BOX
1485 && !face
->box_color_defaulted_p
1486 && face
->box_color
!= BLACK_PIX_DEFAULT (f
)
1487 && face
->box_color
!= WHITE_PIX_DEFAULT (f
))
1489 XFreeColors (dpy
, cmap
, &face
->box_color
, 1, 0);
1490 IF_DEBUG (--ncolors_allocated
);
1496 #endif /* HAVE_X_WINDOWS */
1500 /***********************************************************************
1502 ***********************************************************************/
1504 /* An enumerator for each field of an XLFD font name. */
1525 /* An enumerator for each possible slant value of a font. Taken from
1526 the XLFD specification. */
1534 XLFD_SLANT_REVERSE_ITALIC
,
1535 XLFD_SLANT_REVERSE_OBLIQUE
,
1539 /* Relative font weight according to XLFD documentation. */
1543 XLFD_WEIGHT_UNKNOWN
,
1544 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1545 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1546 XLFD_WEIGHT_LIGHT
, /* 30 */
1547 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1548 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1549 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1550 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1551 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1552 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1555 /* Relative proportionate width. */
1559 XLFD_SWIDTH_UNKNOWN
,
1560 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1561 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1562 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1563 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1564 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1565 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1566 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1567 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1568 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1571 /* Structure used for tables mapping XLFD weight, slant, and width
1572 names to numeric and symbolic values. */
1578 Lisp_Object
*symbol
;
1581 /* Table of XLFD slant names and their numeric and symbolic
1582 representations. This table must be sorted by slant names in
1585 static struct table_entry slant_table
[] =
1587 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1588 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1589 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1590 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1591 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1592 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1595 /* Table of XLFD weight names. This table must be sorted by weight
1596 names in ascending order. */
1598 static struct table_entry weight_table
[] =
1600 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1601 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1602 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1603 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1604 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1605 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1606 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1607 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1608 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1609 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1610 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1611 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1612 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1613 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1614 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1617 /* Table of XLFD width names. This table must be sorted by width
1618 names in ascending order. */
1620 static struct table_entry swidth_table
[] =
1622 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1623 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1624 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1625 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1626 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1627 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1628 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1629 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1630 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1631 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1632 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1633 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1634 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1635 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1636 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1639 /* Structure used to hold the result of splitting font names in XLFD
1640 format into their fields. */
1644 /* The original name which is modified destructively by
1645 split_font_name. The pointer is kept here to be able to free it
1646 if it was allocated from the heap. */
1649 /* Font name fields. Each vector element points into `name' above.
1650 Fields are NUL-terminated. */
1651 char *fields
[XLFD_LAST
];
1653 /* Numeric values for those fields that interest us. See
1654 split_font_name for which these are. */
1655 int numeric
[XLFD_LAST
];
1658 /* The frame in effect when sorting font names. Set temporarily in
1659 sort_fonts so that it is available in font comparison functions. */
1661 static struct frame
*font_frame
;
1663 /* Order by which font selection chooses fonts. The default values
1664 mean `first, find a best match for the font width, then for the
1665 font height, then for weight, then for slant.' This variable can be
1666 set via set-face-font-sort-order. */
1668 static int font_sort_order
[4];
1671 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1672 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1673 is a pointer to the matching table entry or null if no table entry
1676 static struct table_entry
*
1677 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1678 struct table_entry
*table
;
1680 struct font_name
*font
;
1683 /* Function split_font_name converts fields to lower-case, so there
1684 is no need to use xstrlwr or xstricmp here. */
1685 char *s
= font
->fields
[field_index
];
1686 int low
, mid
, high
, cmp
;
1693 mid
= (low
+ high
) / 2;
1694 cmp
= strcmp (table
[mid
].name
, s
);
1708 /* Return a numeric representation for font name field
1709 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1710 has DIM entries. Value is the numeric value found or DFLT if no
1711 table entry matches. This function is used to translate weight,
1712 slant, and swidth names of XLFD font names to numeric values. */
1715 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1716 struct table_entry
*table
;
1718 struct font_name
*font
;
1722 struct table_entry
*p
;
1723 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1724 return p
? p
->numeric
: dflt
;
1728 /* Return a symbolic representation for font name field
1729 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1730 has DIM entries. Value is the symbolic value found or DFLT if no
1731 table entry matches. This function is used to translate weight,
1732 slant, and swidth names of XLFD font names to symbols. */
1734 static INLINE Lisp_Object
1735 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
1736 struct table_entry
*table
;
1738 struct font_name
*font
;
1742 struct table_entry
*p
;
1743 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1744 return p
? *p
->symbol
: dflt
;
1748 /* Return a numeric value for the slant of the font given by FONT. */
1751 xlfd_numeric_slant (font
)
1752 struct font_name
*font
;
1754 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
1755 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
1759 /* Return a symbol representing the weight of the font given by FONT. */
1761 static INLINE Lisp_Object
1762 xlfd_symbolic_slant (font
)
1763 struct font_name
*font
;
1765 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
1766 font
, XLFD_SLANT
, Qnormal
);
1770 /* Return a numeric value for the weight of the font given by FONT. */
1773 xlfd_numeric_weight (font
)
1774 struct font_name
*font
;
1776 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
1777 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
1781 /* Return a symbol representing the slant of the font given by FONT. */
1783 static INLINE Lisp_Object
1784 xlfd_symbolic_weight (font
)
1785 struct font_name
*font
;
1787 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
1788 font
, XLFD_WEIGHT
, Qnormal
);
1792 /* Return a numeric value for the swidth of the font whose XLFD font
1793 name fields are found in FONT. */
1796 xlfd_numeric_swidth (font
)
1797 struct font_name
*font
;
1799 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
1800 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
1804 /* Return a symbolic value for the swidth of FONT. */
1806 static INLINE Lisp_Object
1807 xlfd_symbolic_swidth (font
)
1808 struct font_name
*font
;
1810 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
1811 font
, XLFD_SWIDTH
, Qnormal
);
1815 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
1816 entries. Value is a pointer to the matching table entry or null if
1817 no element of TABLE contains SYMBOL. */
1819 static struct table_entry
*
1820 face_value (table
, dim
, symbol
)
1821 struct table_entry
*table
;
1827 xassert (SYMBOLP (symbol
));
1829 for (i
= 0; i
< dim
; ++i
)
1830 if (EQ (*table
[i
].symbol
, symbol
))
1833 return i
< dim
? table
+ i
: NULL
;
1837 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
1838 entries. Value is -1 if SYMBOL is not found in TABLE. */
1841 face_numeric_value (table
, dim
, symbol
)
1842 struct table_entry
*table
;
1846 struct table_entry
*p
= face_value (table
, dim
, symbol
);
1847 return p
? p
->numeric
: -1;
1851 /* Return a numeric value representing the weight specified by Lisp
1852 symbol WEIGHT. Value is one of the enumerators of enum
1856 face_numeric_weight (weight
)
1859 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
1863 /* Return a numeric value representing the slant specified by Lisp
1864 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
1867 face_numeric_slant (slant
)
1870 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
1874 /* Return a numeric value representing the swidth specified by Lisp
1875 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
1878 face_numeric_swidth (width
)
1881 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
1885 #ifdef HAVE_X_WINDOWS
1887 /* Return non-zero if FONT is the name of a fixed-pitch font. */
1891 struct font_name
*font
;
1893 /* Function split_font_name converts fields to lower-case, so there
1894 is no need to use tolower here. */
1895 return *font
->fields
[XLFD_SPACING
] != 'p';
1899 /* Return the point size of FONT on frame F, measured in 1/10 pt.
1901 The actual height of the font when displayed on F depends on the
1902 resolution of both the font and frame. For example, a 10pt font
1903 designed for a 100dpi display will display larger than 10pt on a
1904 75dpi display. (It's not unusual to use fonts not designed for the
1905 display one is using. For example, some intlfonts are available in
1906 72dpi versions, only.)
1908 Value is the real point size of FONT on frame F, or 0 if it cannot
1912 xlfd_point_size (f
, font
)
1914 struct font_name
*font
;
1916 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
1917 double font_resy
= atoi (font
->fields
[XLFD_RESY
]);
1918 double font_pt
= atoi (font
->fields
[XLFD_POINT_SIZE
]);
1921 if (font_resy
== 0 || font_pt
== 0)
1924 real_pt
= (font_resy
/ resy
) * font_pt
+ 0.5;
1930 /* Split XLFD font name FONT->name destructively into NUL-terminated,
1931 lower-case fields in FONT->fields. NUMERIC_P non-zero means
1932 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
1933 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
1934 zero if the font name doesn't have the format we expect. The
1935 expected format is a font name that starts with a `-' and has
1936 XLFD_LAST fields separated by `-'. (The XLFD specification allows
1937 forms of font names where certain field contents are enclosed in
1938 square brackets. We don't support that, for now. */
1941 split_font_name (f
, font
, numeric_p
)
1943 struct font_name
*font
;
1949 if (*font
->name
== '-')
1951 char *p
= xstrlwr (font
->name
) + 1;
1953 while (i
< XLFD_LAST
)
1955 font
->fields
[i
] = p
;
1958 while (*p
&& *p
!= '-')
1968 success_p
= i
== XLFD_LAST
;
1970 /* If requested, and font name was in the expected format,
1971 compute numeric values for some fields. */
1972 if (numeric_p
&& success_p
)
1974 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
1975 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
1976 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
1977 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
1978 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
1985 /* Build an XLFD font name from font name fields in FONT. Value is a
1986 pointer to the font name, which is allocated via xmalloc. */
1989 build_font_name (font
)
1990 struct font_name
*font
;
1994 char *font_name
= (char *) xmalloc (size
);
1995 int total_length
= 0;
1997 for (i
= 0; i
< XLFD_LAST
; ++i
)
1999 /* Add 1 because of the leading `-'. */
2000 int len
= strlen (font
->fields
[i
]) + 1;
2002 /* Reallocate font_name if necessary. Add 1 for the final
2004 if (total_length
+ len
+ 1 >= size
)
2006 int new_size
= max (2 * size
, size
+ len
+ 1);
2007 int sz
= new_size
* sizeof *font_name
;
2008 font_name
= (char *) xrealloc (font_name
, sz
);
2012 font_name
[total_length
] = '-';
2013 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2014 total_length
+= len
;
2017 font_name
[total_length
] = 0;
2022 /* Free an array FONTS of N font_name structures. This frees FONTS
2023 itself and all `name' fields in its elements. */
2026 free_font_names (fonts
, n
)
2027 struct font_name
*fonts
;
2031 xfree (fonts
[--n
].name
);
2036 /* Sort vector FONTS of font_name structures which contains NFONTS
2037 elements using qsort and comparison function CMPFN. F is the frame
2038 on which the fonts will be used. The global variable font_frame
2039 is temporarily set to F to make it available in CMPFN. */
2042 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2044 struct font_name
*fonts
;
2046 int (*cmpfn
) P_ ((const void *, const void *));
2049 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2054 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2055 display in x_display_list. FONTS is a pointer to a vector of
2056 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2057 alternative patterns from Valternate_fontname_alist if no fonts are
2058 found matching PATTERN. SCALABLE_FONTS_P non-zero means include
2061 For all fonts found, set FONTS[i].name to the name of the font,
2062 allocated via xmalloc, and split font names into fields. Ignore
2063 fonts that we can't parse. Value is the number of fonts found.
2065 This is similar to x_list_fonts. The differences are:
2067 1. It avoids consing.
2068 2. It never calls XLoadQueryFont. */
2071 x_face_list_fonts (f
, pattern
, fonts
, nfonts
, try_alternatives_p
,
2075 struct font_name
*fonts
;
2076 int nfonts
, try_alternatives_p
;
2077 int scalable_fonts_p
;
2079 Display
*dpy
= f
? FRAME_X_DISPLAY (f
) : x_display_list
->display
;
2083 /* Get the list of fonts matching PATTERN from the X server. */
2085 names
= XListFonts (dpy
, pattern
, nfonts
, &n
);
2090 /* Make a copy of the font names we got from X, and
2091 split them into fields. */
2092 for (i
= j
= 0; i
< n
; ++i
)
2094 /* Make a copy of the font name. */
2095 fonts
[j
].name
= xstrdup (names
[i
]);
2097 /* Ignore fonts having a name that we can't parse. */
2098 if (!split_font_name (f
, fonts
+ j
, 1))
2099 xfree (fonts
[j
].name
);
2100 else if (font_scalable_p (fonts
+ j
))
2103 if (!scalable_fonts_p
2104 || !may_use_scalable_font_p (fonts
+ j
, names
[i
]))
2105 xfree (fonts
[j
].name
);
2108 #else /* !SCALABLE_FONTS */
2109 /* Always ignore scalable fonts. */
2110 xfree (fonts
[j
].name
);
2111 #endif /* !SCALABLE_FONTS */
2119 /* Free font names. */
2121 XFreeFontNames (names
);
2126 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2127 if (n
== 0 && try_alternatives_p
)
2129 Lisp_Object list
= Valternate_fontname_alist
;
2131 while (CONSP (list
))
2133 Lisp_Object entry
= XCAR (list
);
2135 && STRINGP (XCAR (entry
))
2136 && strcmp (XSTRING (XCAR (entry
))->data
, pattern
) == 0)
2143 Lisp_Object patterns
= XCAR (list
);
2146 while (CONSP (patterns
)
2147 /* If list is screwed up, give up. */
2148 && (name
= XCAR (patterns
),
2150 /* Ignore patterns equal to PATTERN because we tried that
2151 already with no success. */
2152 && (strcmp (XSTRING (name
)->data
, pattern
) == 0
2153 || (n
= x_face_list_fonts (f
, XSTRING (name
)->data
,
2157 patterns
= XCDR (patterns
);
2165 /* Determine the first font matching PATTERN on frame F. Return in
2166 *FONT the matching font name, split into fields. Value is non-zero
2167 if a match was found. */
2170 first_font_matching (f
, pattern
, font
)
2173 struct font_name
*font
;
2176 struct font_name
*fonts
;
2178 fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof *fonts
);
2179 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1, 0);
2183 bcopy (&fonts
[0], font
, sizeof *font
);
2185 fonts
[0].name
= NULL
;
2186 free_font_names (fonts
, nfonts
);
2193 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2194 using comparison function CMPFN. Value is the number of fonts
2195 found. If value is non-zero, *FONTS is set to a vector of
2196 font_name structures allocated from the heap containing matching
2197 fonts. Each element of *FONTS contains a name member that is also
2198 allocated from the heap. Font names in these structures are split
2199 into fields. Use free_font_names to free such an array. */
2202 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2205 int (*cmpfn
) P_ ((const void *, const void *));
2206 struct font_name
**fonts
;
2210 /* Get the list of fonts matching pattern. 100 should suffice. */
2211 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2212 if (INTEGERP (Vfont_list_limit
) && XINT (Vfont_list_limit
) > 0)
2213 nfonts
= XFASTINT (Vfont_list_limit
);
2215 *fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof **fonts
);
2217 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 1);
2219 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 0);
2222 /* Sort the resulting array and return it in *FONTS. If no
2223 fonts were found, make sure to set *FONTS to null. */
2225 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2236 /* Compare two font_name structures *A and *B. Value is analogous to
2237 strcmp. Sort order is given by the global variable
2238 font_sort_order. Font names are sorted so that, everything else
2239 being equal, fonts with a resolution closer to that of the frame on
2240 which they are used are listed first. The global variable
2241 font_frame is the frame on which we operate. */
2244 cmp_font_names (a
, b
)
2247 struct font_name
*x
= (struct font_name
*) a
;
2248 struct font_name
*y
= (struct font_name
*) b
;
2251 /* All strings have been converted to lower-case by split_font_name,
2252 so we can use strcmp here. */
2253 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2258 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2260 int j
= font_sort_order
[i
];
2261 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2266 /* Everything else being equal, we prefer fonts with an
2267 y-resolution closer to that of the frame. */
2268 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2269 int x_resy
= x
->numeric
[XLFD_RESY
];
2270 int y_resy
= y
->numeric
[XLFD_RESY
];
2271 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2279 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2280 is non-null list fonts matching that pattern. Otherwise, if
2281 REGISTRY_AND_ENCODING is non-null return only fonts with that
2282 registry and encoding, otherwise return fonts of any registry and
2283 encoding. Set *FONTS to a vector of font_name structures allocated
2284 from the heap containing the fonts found. Value is the number of
2288 font_list (f
, pattern
, family
, registry_and_encoding
, fonts
)
2292 char *registry_and_encoding
;
2293 struct font_name
**fonts
;
2295 if (pattern
== NULL
)
2300 if (registry_and_encoding
== NULL
)
2301 registry_and_encoding
= "*";
2303 pattern
= (char *) alloca (strlen (family
)
2304 + strlen (registry_and_encoding
)
2306 if (index (family
, '-'))
2307 sprintf (pattern
, "-%s-*-%s", family
, registry_and_encoding
);
2309 sprintf (pattern
, "-*-%s-*-%s", family
, registry_and_encoding
);
2312 return sorted_font_list (f
, pattern
, cmp_font_names
, fonts
);
2316 /* Remove elements from LIST whose cars are `equal'. Called from
2317 x-family-fonts and x-font-family-list to remove duplicate font
2321 remove_duplicates (list
)
2324 Lisp_Object tail
= list
;
2326 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2328 Lisp_Object next
= XCDR (tail
);
2329 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2330 XCDR (tail
) = XCDR (next
);
2337 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2338 "Return a list of available fonts of family FAMILY on FRAME.\n\
2339 If FAMILY is omitted or nil, list all families.\n\
2340 Otherwise, FAMILY must be a string, possibly containing wildcards\n\
2342 If FRAME is omitted or nil, use the selected frame.\n\
2343 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\
2344 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\
2345 FAMILY is the font family name. POINT-SIZE is the size of the\n\
2346 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\
2347 width, weight and slant of the font. These symbols are the same as for\n\
2348 face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\
2349 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\
2350 giving the registry and encoding of the font.\n\
2351 The result list is sorted according to the current setting of\n\
2352 the face font sort order.")
2354 Lisp_Object family
, frame
;
2356 struct frame
*f
= check_x_frame (frame
);
2357 struct font_name
*fonts
;
2360 struct gcpro gcpro1
;
2361 char *family_pattern
;
2364 family_pattern
= "*";
2367 CHECK_STRING (family
, 1);
2368 family_pattern
= LSTRDUPA (family
);
2373 nfonts
= font_list (f
, NULL
, family_pattern
, NULL
, &fonts
);
2374 for (i
= nfonts
- 1; i
>= 0; --i
)
2376 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2379 #define ASET(VECTOR, IDX, VAL) (XVECTOR (VECTOR)->contents[IDX] = (VAL))
2381 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2382 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2383 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2384 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2385 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2386 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2387 tem
= build_font_name (fonts
+ i
);
2388 ASET (v
, 6, build_string (tem
));
2389 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2390 fonts
[i
].fields
[XLFD_ENCODING
]);
2391 ASET (v
, 7, build_string (tem
));
2394 result
= Fcons (v
, result
);
2399 remove_duplicates (result
);
2400 free_font_names (fonts
, nfonts
);
2406 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2408 "Return a list of available font families on FRAME.\n\
2409 If FRAME is omitted or nil, use the selected frame.\n\
2410 Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\
2411 is a font family, and FIXED-P is non-nil if fonts of that family\n\
2416 struct frame
*f
= check_x_frame (frame
);
2418 struct font_name
*fonts
;
2420 struct gcpro gcpro1
;
2421 int count
= specpdl_ptr
- specpdl
;
2424 /* Let's consider all fonts. Increase the limit for matching
2425 fonts until we have them all. */
2428 specbind (intern ("font-list-limit"), make_number (limit
));
2429 nfonts
= font_list (f
, NULL
, "*", NULL
, &fonts
);
2431 if (nfonts
== limit
)
2433 free_font_names (fonts
, nfonts
);
2442 for (i
= nfonts
- 1; i
>= 0; --i
)
2443 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2444 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2447 remove_duplicates (result
);
2448 free_font_names (fonts
, nfonts
);
2450 return unbind_to (count
, result
);
2454 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2455 "Return a list of the names of available fonts matching PATTERN.\n\
2456 If optional arguments FACE and FRAME are specified, return only fonts\n\
2457 the same size as FACE on FRAME.\n\
2458 PATTERN is a string, perhaps with wildcard characters;\n\
2459 the * character matches any substring, and\n\
2460 the ? character matches any single character.\n\
2461 PATTERN is case-insensitive.\n\
2462 FACE is a face name--a symbol.\n\
2464 The return value is a list of strings, suitable as arguments to\n\
2467 Fonts Emacs can't use may or may not be excluded\n\
2468 even if they match PATTERN and FACE.\n\
2469 The optional fourth argument MAXIMUM sets a limit on how many\n\
2470 fonts to match. The first MAXIMUM fonts are reported.\n\
2471 The optional fifth argument WIDTH, if specified, is a number of columns\n\
2472 occupied by a character of a font. In that case, return only fonts\n\
2473 the WIDTH times as wide as FACE on FRAME.")
2474 (pattern
, face
, frame
, maximum
, width
)
2475 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2482 CHECK_STRING (pattern
, 0);
2488 CHECK_NATNUM (maximum
, 0);
2489 maxnames
= XINT (maximum
);
2493 CHECK_NUMBER (width
, 4);
2495 /* We can't simply call check_x_frame because this function may be
2496 called before any frame is created. */
2497 f
= frame_or_selected_frame (frame
, 2);
2500 /* Perhaps we have not yet created any frame. */
2505 /* Determine the width standard for comparison with the fonts we find. */
2511 /* This is of limited utility since it works with character
2512 widths. Keep it for compatibility. --gerd. */
2513 int face_id
= lookup_named_face (f
, face
, CHARSET_ASCII
);
2514 struct face
*face
= FACE_FROM_ID (f
, face_id
);
2517 size
= face
->font
->max_bounds
.width
;
2519 size
= FRAME_FONT (f
)->max_bounds
.width
;
2522 size
*= XINT (width
);
2526 Lisp_Object args
[2];
2528 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
2530 /* We don't have to check fontsets. */
2532 args
[1] = list_fontsets (f
, pattern
, size
);
2533 return Fnconc (2, args
);
2537 #endif /* HAVE_X_WINDOWS */
2541 /***********************************************************************
2543 ***********************************************************************/
2545 /* Access face attributes of face FACE, a Lisp vector. */
2547 #define LFACE_FAMILY(LFACE) \
2548 XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX]
2549 #define LFACE_HEIGHT(LFACE) \
2550 XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX]
2551 #define LFACE_WEIGHT(LFACE) \
2552 XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX]
2553 #define LFACE_SLANT(LFACE) \
2554 XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX]
2555 #define LFACE_UNDERLINE(LFACE) \
2556 XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX]
2557 #define LFACE_INVERSE(LFACE) \
2558 XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX]
2559 #define LFACE_FOREGROUND(LFACE) \
2560 XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX]
2561 #define LFACE_BACKGROUND(LFACE) \
2562 XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX]
2563 #define LFACE_STIPPLE(LFACE) \
2564 XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX]
2565 #define LFACE_SWIDTH(LFACE) \
2566 XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX]
2567 #define LFACE_OVERLINE(LFACE) \
2568 XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX]
2569 #define LFACE_STRIKE_THROUGH(LFACE) \
2570 XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX]
2571 #define LFACE_BOX(LFACE) \
2572 XVECTOR (LFACE)->contents[LFACE_BOX_INDEX]
2574 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
2575 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
2577 #define LFACEP(LFACE) \
2579 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
2580 && EQ (XVECTOR (LFACE)->contents[0], Qface))
2585 /* Check consistency of Lisp face attribute vector ATTRS. */
2588 check_lface_attrs (attrs
)
2591 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
2592 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
2593 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
2594 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
2595 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
2596 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
]));
2597 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2598 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2599 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2600 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2601 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2602 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2603 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2604 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2605 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2606 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2607 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2608 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2609 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2610 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2611 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2612 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2613 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2614 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2615 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2616 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2617 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2618 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2619 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2620 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2621 #ifdef HAVE_WINDOW_SYSTEM
2622 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2623 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2624 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2629 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2637 xassert (LFACEP (lface
));
2638 check_lface_attrs (XVECTOR (lface
)->contents
);
2642 #else /* GLYPH_DEBUG == 0 */
2644 #define check_lface_attrs(attrs) (void) 0
2645 #define check_lface(lface) (void) 0
2647 #endif /* GLYPH_DEBUG == 0 */
2650 /* Resolve face name FACE_NAME. If FACE_NAME Is a string, intern it
2651 to make it a symvol. If FACE_NAME is an alias for another face,
2652 return that face's name. */
2655 resolve_face_name (face_name
)
2656 Lisp_Object face_name
;
2658 Lisp_Object aliased
;
2660 if (STRINGP (face_name
))
2661 face_name
= intern (XSTRING (face_name
)->data
);
2665 aliased
= Fget (face_name
, Qface_alias
);
2669 face_name
= aliased
;
2676 /* Return the face definition of FACE_NAME on frame F. F null means
2677 return the global definition. FACE_NAME may be a string or a
2678 symbol (apparently Emacs 20.2 allows strings as face names in face
2679 text properties; ediff uses that). If FACE_NAME is an alias for
2680 another face, return that face's definition. If SIGNAL_P is
2681 non-zero, signal an error if FACE_NAME is not a valid face name.
2682 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2685 static INLINE Lisp_Object
2686 lface_from_face_name (f
, face_name
, signal_p
)
2688 Lisp_Object face_name
;
2693 face_name
= resolve_face_name (face_name
);
2696 lface
= assq_no_quit (face_name
, f
->face_alist
);
2698 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2701 lface
= XCDR (lface
);
2703 signal_error ("Invalid face", face_name
);
2705 check_lface (lface
);
2710 /* Get face attributes of face FACE_NAME from frame-local faces on
2711 frame F. Store the resulting attributes in ATTRS which must point
2712 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2713 is non-zero, signal an error if FACE_NAME does not name a face.
2714 Otherwise, value is zero if FACE_NAME is not a face. */
2717 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
2719 Lisp_Object face_name
;
2726 lface
= lface_from_face_name (f
, face_name
, signal_p
);
2729 bcopy (XVECTOR (lface
)->contents
, attrs
,
2730 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2740 /* Non-zero if all attributes in face attribute vector ATTRS are
2741 specified, i.e. are non-nil. */
2744 lface_fully_specified_p (attrs
)
2749 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2750 if (UNSPECIFIEDP (attrs
[i
]))
2753 return i
== LFACE_VECTOR_SIZE
;
2757 #ifdef HAVE_X_WINDOWS
2759 /* Set font-related attributes of Lisp face LFACE from XLFD font name
2760 FONT_NAME. If FORCE_P is zero, set only unspecified attributes of
2761 LFACE. MAY_FAIL_P non-zero means return 0 if FONT_NAME isn't a
2762 valid font name; otherwise this function tries to use a reasonable
2765 Ignore fields of FONT_NAME containing wildcards. Value is zero if
2766 not successful because FONT_NAME was not in a valid format and
2767 MAY_FAIL_P was non-zero. A valid format is one that is suitable
2768 for split_font_name, see the comment there. */
2771 set_lface_from_font_name (f
, lface
, font_name
, force_p
, may_fail_p
)
2775 int force_p
, may_fail_p
;
2777 struct font_name font
;
2780 int free_font_name_p
= 0;
2781 int have_font_p
= 0;
2783 /* If FONT_NAME contains wildcards, use the first matching font. */
2784 if (index (font_name
, '*') || index (font_name
, '?'))
2786 if (first_font_matching (f
, font_name
, &font
))
2787 free_font_name_p
= have_font_p
= 1;
2791 font
.name
= STRDUPA (font_name
);
2792 if (split_font_name (f
, &font
, 1))
2796 /* The font name may be something like `6x13'. Make
2797 sure we use the full name. */
2798 struct font_info
*font_info
;
2801 font_info
= fs_load_font (f
, FRAME_X_FONT_TABLE (f
),
2802 CHARSET_ASCII
, font_name
, -1);
2805 font
.name
= STRDUPA (font_info
->full_name
);
2806 split_font_name (f
, &font
, 1);
2813 /* If FONT_NAME is completely bogus try to use something reasonable
2814 if this function must succeed. Otherwise, give up. */
2819 else if (first_font_matching (f
, "-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1",
2821 || first_font_matching (f
, "-misc-fixed-medium-r-normal-*-*-140-*-*-c-*-iso8859-1",
2823 || first_font_matching (f
, "-*-*-medium-r-normal-*-*-140-*-*-c-*-iso8859-1",
2825 || first_font_matching (f
, "-*-*-medium-r-*-*-*-*-*-*-c-*-iso8859-1",
2827 || first_font_matching (f
, "-*-fixed-*-*-*-*-*-140-*-*-c-*-iso8859-1",
2829 || first_font_matching (f
, "fixed", &font
))
2830 free_font_name_p
= 1;
2836 /* Set attributes only if unspecified, otherwise face defaults for
2837 new frames would never take effect. */
2839 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2841 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
2842 + strlen (font
.fields
[XLFD_FOUNDRY
])
2844 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
2845 font
.fields
[XLFD_FAMILY
]);
2846 LFACE_FAMILY (lface
) = build_string (buffer
);
2849 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
2851 pt
= xlfd_point_size (f
, &font
);
2853 LFACE_HEIGHT (lface
) = make_number (pt
);
2856 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
2857 LFACE_SWIDTH (lface
) = xlfd_symbolic_swidth (&font
);
2859 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
2860 LFACE_WEIGHT (lface
) = xlfd_symbolic_weight (&font
);
2862 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
2863 LFACE_SLANT (lface
) = xlfd_symbolic_slant (&font
);
2865 if (free_font_name_p
)
2871 #endif /* HAVE_X_WINDOWS */
2874 /* Merge two Lisp face attribute vectors FROM and TO and store the
2875 resulting attributes in TO. Every non-nil attribute of FROM
2876 overrides the corresponding attribute of TO. */
2879 merge_face_vectors (from
, to
)
2880 Lisp_Object
*from
, *to
;
2883 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2884 if (!UNSPECIFIEDP (from
[i
]))
2889 /* Given a Lisp face attribute vector TO and a Lisp object PROP that
2890 is a face property, determine the resulting face attributes on
2891 frame F, and store them in TO. PROP may be a single face
2892 specification or a list of such specifications. Each face
2893 specification can be
2895 1. A symbol or string naming a Lisp face.
2897 2. A property list of the form (KEYWORD VALUE ...) where each
2898 KEYWORD is a face attribute name, and value is an appropriate value
2901 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
2902 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
2903 for compatibility with 20.2.
2905 Face specifications earlier in lists take precedence over later
2909 merge_face_vector_with_property (f
, to
, prop
)
2916 Lisp_Object first
= XCAR (prop
);
2918 if (EQ (first
, Qforeground_color
)
2919 || EQ (first
, Qbackground_color
))
2921 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
2922 . COLOR). COLOR must be a string. */
2923 Lisp_Object color_name
= XCDR (prop
);
2924 Lisp_Object color
= first
;
2926 if (STRINGP (color_name
))
2928 if (EQ (color
, Qforeground_color
))
2929 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
2931 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
2934 add_to_log ("Invalid face color", color_name
, Qnil
);
2936 else if (SYMBOLP (first
)
2937 && *XSYMBOL (first
)->name
->data
== ':')
2939 /* Assume this is the property list form. */
2940 while (CONSP (prop
) && CONSP (XCDR (prop
)))
2942 Lisp_Object keyword
= XCAR (prop
);
2943 Lisp_Object value
= XCAR (XCDR (prop
));
2945 if (EQ (keyword
, QCfamily
))
2947 if (STRINGP (value
))
2948 to
[LFACE_FAMILY_INDEX
] = value
;
2950 add_to_log ("Illegal face font family", value
, Qnil
);
2952 else if (EQ (keyword
, QCheight
))
2954 if (INTEGERP (value
))
2955 to
[LFACE_HEIGHT_INDEX
] = value
;
2957 add_to_log ("Illegal face font height", value
, Qnil
);
2959 else if (EQ (keyword
, QCweight
))
2962 && face_numeric_weight (value
) >= 0)
2963 to
[LFACE_WEIGHT_INDEX
] = value
;
2965 add_to_log ("Illegal face weight", value
, Qnil
);
2967 else if (EQ (keyword
, QCslant
))
2970 && face_numeric_slant (value
) >= 0)
2971 to
[LFACE_SLANT_INDEX
] = value
;
2973 add_to_log ("Illegal face slant", value
, Qnil
);
2975 else if (EQ (keyword
, QCunderline
))
2980 to
[LFACE_UNDERLINE_INDEX
] = value
;
2982 add_to_log ("Illegal face underline", value
, Qnil
);
2984 else if (EQ (keyword
, QCoverline
))
2989 to
[LFACE_OVERLINE_INDEX
] = value
;
2991 add_to_log ("Illegal face overline", value
, Qnil
);
2993 else if (EQ (keyword
, QCstrike_through
))
2998 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3000 add_to_log ("Illegal face strike-through", value
, Qnil
);
3002 else if (EQ (keyword
, QCbox
))
3005 value
= make_number (1);
3006 if (INTEGERP (value
)
3010 to
[LFACE_BOX_INDEX
] = value
;
3012 add_to_log ("Illegal face box", value
, Qnil
);
3014 else if (EQ (keyword
, QCinverse_video
)
3015 || EQ (keyword
, QCreverse_video
))
3017 if (EQ (value
, Qt
) || NILP (value
))
3018 to
[LFACE_INVERSE_INDEX
] = value
;
3020 add_to_log ("Illegal face inverse-video", value
, Qnil
);
3022 else if (EQ (keyword
, QCforeground
))
3024 if (STRINGP (value
))
3025 to
[LFACE_FOREGROUND_INDEX
] = value
;
3027 add_to_log ("Illegal face foreground", value
, Qnil
);
3029 else if (EQ (keyword
, QCbackground
))
3031 if (STRINGP (value
))
3032 to
[LFACE_BACKGROUND_INDEX
] = value
;
3034 add_to_log ("Illegal face background", value
, Qnil
);
3036 else if (EQ (keyword
, QCstipple
))
3038 #ifdef HAVE_X_WINDOWS
3039 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3040 if (!NILP (pixmap_p
))
3041 to
[LFACE_STIPPLE_INDEX
] = value
;
3043 add_to_log ("Illegal face stipple", value
, Qnil
);
3046 else if (EQ (keyword
, QCwidth
))
3049 && face_numeric_swidth (value
) >= 0)
3050 to
[LFACE_SWIDTH_INDEX
] = value
;
3052 add_to_log ("Illegal face width", value
, Qnil
);
3055 add_to_log ("Invalid attribute %s in face property",
3058 prop
= XCDR (XCDR (prop
));
3063 /* This is a list of face specs. Specifications at the
3064 beginning of the list take precedence over later
3065 specifications, so we have to merge starting with the
3066 last specification. */
3067 Lisp_Object next
= XCDR (prop
);
3069 merge_face_vector_with_property (f
, to
, next
);
3070 merge_face_vector_with_property (f
, to
, first
);
3075 /* PROP ought to be a face name. */
3076 Lisp_Object lface
= lface_from_face_name (f
, prop
, 0);
3078 add_to_log ("Invalid face text property value: %s", prop
, Qnil
);
3080 merge_face_vectors (XVECTOR (lface
)->contents
, to
);
3085 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3086 Sinternal_make_lisp_face
, 1, 2, 0,
3087 "Make FACE, a symbol, a Lisp face with all attributes nil.\n\
3088 If FACE was not known as a face before, create a new one.\n\
3089 If optional argument FRAME is specified, make a frame-local face\n\
3090 for that frame. Otherwise operate on the global face definition.\n\
3091 Value is a vector of face attributes.")
3093 Lisp_Object face
, frame
;
3095 Lisp_Object global_lface
, lface
;
3099 CHECK_SYMBOL (face
, 0);
3100 global_lface
= lface_from_face_name (NULL
, face
, 0);
3104 CHECK_LIVE_FRAME (frame
, 1);
3106 lface
= lface_from_face_name (f
, face
, 0);
3109 f
= NULL
, lface
= Qnil
;
3111 /* Add a global definition if there is none. */
3112 if (NILP (global_lface
))
3114 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3116 XVECTOR (global_lface
)->contents
[0] = Qface
;
3117 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3118 Vface_new_frame_defaults
);
3120 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3121 face id to Lisp face is given by the vector lface_id_to_name.
3122 The mapping from Lisp face to Lisp face id is given by the
3123 property `face' of the Lisp face name. */
3124 if (next_lface_id
== lface_id_to_name_size
)
3126 int new_size
= max (50, 2 * lface_id_to_name_size
);
3127 int sz
= new_size
* sizeof *lface_id_to_name
;
3128 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3129 lface_id_to_name_size
= new_size
;
3132 lface_id_to_name
[next_lface_id
] = face
;
3133 Fput (face
, Qface
, make_number (next_lface_id
));
3137 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3138 XVECTOR (global_lface
)->contents
[i
] = Qunspecified
;
3140 /* Add a frame-local definition. */
3145 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3147 XVECTOR (lface
)->contents
[0] = Qface
;
3148 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3151 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3152 XVECTOR (lface
)->contents
[i
] = Qunspecified
;
3155 lface
= global_lface
;
3157 xassert (LFACEP (lface
));
3158 check_lface (lface
);
3163 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3164 Sinternal_lisp_face_p
, 1, 2, 0,
3165 "Return non-nil if FACE names a face.\n\
3166 If optional second parameter FRAME is non-nil, check for the\n\
3167 existence of a frame-local face with name FACE on that frame.\n\
3168 Otherwise check for the existence of a global face.")
3170 Lisp_Object face
, frame
;
3176 CHECK_LIVE_FRAME (frame
, 1);
3177 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3180 lface
= lface_from_face_name (NULL
, face
, 0);
3186 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3187 Sinternal_copy_lisp_face
, 4, 4, 0,
3188 "Copy face FROM to TO.\n\
3189 If FRAME it t, copy the global face definition of FROM to the\n\
3190 global face definition of TO. Otherwise, copy the frame-local\n\
3191 definition of FROM on FRAME to the frame-local definition of TO\n\
3192 on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\
3195 (from
, to
, frame
, new_frame
)
3196 Lisp_Object from
, to
, frame
, new_frame
;
3198 Lisp_Object lface
, copy
;
3200 CHECK_SYMBOL (from
, 0);
3201 CHECK_SYMBOL (to
, 1);
3202 if (NILP (new_frame
))
3207 /* Copy global definition of FROM. We don't make copies of
3208 strings etc. because 20.2 didn't do it either. */
3209 lface
= lface_from_face_name (NULL
, from
, 1);
3210 copy
= Finternal_make_lisp_face (to
, Qnil
);
3214 /* Copy frame-local definition of FROM. */
3215 CHECK_LIVE_FRAME (frame
, 2);
3216 CHECK_LIVE_FRAME (new_frame
, 3);
3217 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3218 copy
= Finternal_make_lisp_face (to
, new_frame
);
3221 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3222 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3228 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3229 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3230 "Set attribute ATTR of FACE to VALUE.\n\
3231 If optional argument FRAME is given, set the face attribute of face FACE\n\
3232 on that frame. If FRAME is t, set the attribute of the default for face\n\
3233 FACE (for new frames). If FRAME is omitted or nil, use the selected\n\
3235 (face
, attr
, value
, frame
)
3236 Lisp_Object face
, attr
, value
, frame
;
3239 Lisp_Object old_value
= Qnil
;
3240 int font_related_attr_p
= 0;
3242 CHECK_SYMBOL (face
, 0);
3243 CHECK_SYMBOL (attr
, 1);
3245 face
= resolve_face_name (face
);
3247 /* Set lface to the Lisp attribute vector of FACE. */
3249 lface
= lface_from_face_name (NULL
, face
, 1);
3253 frame
= selected_frame
;
3255 CHECK_LIVE_FRAME (frame
, 3);
3256 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3258 /* If a frame-local face doesn't exist yet, create one. */
3260 lface
= Finternal_make_lisp_face (face
, frame
);
3263 if (EQ (attr
, QCfamily
))
3265 if (!UNSPECIFIEDP (value
))
3267 CHECK_STRING (value
, 3);
3268 if (XSTRING (value
)->size
== 0)
3269 signal_error ("Invalid face family", value
);
3271 old_value
= LFACE_FAMILY (lface
);
3272 LFACE_FAMILY (lface
) = value
;
3273 font_related_attr_p
= 1;
3275 else if (EQ (attr
, QCheight
))
3277 if (!UNSPECIFIEDP (value
))
3279 CHECK_NUMBER (value
, 3);
3280 if (XINT (value
) <= 0)
3281 signal_error ("Invalid face height", value
);
3283 old_value
= LFACE_HEIGHT (lface
);
3284 LFACE_HEIGHT (lface
) = value
;
3285 font_related_attr_p
= 1;
3287 else if (EQ (attr
, QCweight
))
3289 if (!UNSPECIFIEDP (value
))
3291 CHECK_SYMBOL (value
, 3);
3292 if (face_numeric_weight (value
) < 0)
3293 signal_error ("Invalid face weight", value
);
3295 old_value
= LFACE_WEIGHT (lface
);
3296 LFACE_WEIGHT (lface
) = value
;
3297 font_related_attr_p
= 1;
3299 else if (EQ (attr
, QCslant
))
3301 if (!UNSPECIFIEDP (value
))
3303 CHECK_SYMBOL (value
, 3);
3304 if (face_numeric_slant (value
) < 0)
3305 signal_error ("Invalid face slant", value
);
3307 old_value
= LFACE_SLANT (lface
);
3308 LFACE_SLANT (lface
) = value
;
3309 font_related_attr_p
= 1;
3311 else if (EQ (attr
, QCunderline
))
3313 if (!UNSPECIFIEDP (value
))
3314 if ((SYMBOLP (value
)
3316 && !EQ (value
, Qnil
))
3317 /* Underline color. */
3319 && XSTRING (value
)->size
== 0))
3320 signal_error ("Invalid face underline", value
);
3322 old_value
= LFACE_UNDERLINE (lface
);
3323 LFACE_UNDERLINE (lface
) = value
;
3325 else if (EQ (attr
, QCoverline
))
3327 if (!UNSPECIFIEDP (value
))
3328 if ((SYMBOLP (value
)
3330 && !EQ (value
, Qnil
))
3331 /* Overline color. */
3333 && XSTRING (value
)->size
== 0))
3334 signal_error ("Invalid face overline", value
);
3336 old_value
= LFACE_OVERLINE (lface
);
3337 LFACE_OVERLINE (lface
) = value
;
3339 else if (EQ (attr
, QCstrike_through
))
3341 if (!UNSPECIFIEDP (value
))
3342 if ((SYMBOLP (value
)
3344 && !EQ (value
, Qnil
))
3345 /* Strike-through color. */
3347 && XSTRING (value
)->size
== 0))
3348 signal_error ("Invalid face strike-through", value
);
3350 old_value
= LFACE_STRIKE_THROUGH (lface
);
3351 LFACE_STRIKE_THROUGH (lface
) = value
;
3353 else if (EQ (attr
, QCbox
))
3357 /* Allow t meaning a simple box of width 1 in foreground color
3360 value
= make_number (1);
3362 if (UNSPECIFIEDP (value
))
3364 else if (NILP (value
))
3366 else if (INTEGERP (value
))
3367 valid_p
= XINT (value
) > 0;
3368 else if (STRINGP (value
))
3369 valid_p
= XSTRING (value
)->size
> 0;
3370 else if (CONSP (value
))
3386 if (EQ (k
, QCline_width
))
3388 if (!INTEGERP (v
) || XINT (v
) <= 0)
3391 else if (EQ (k
, QCcolor
))
3393 if (!STRINGP (v
) || XSTRING (v
)->size
== 0)
3396 else if (EQ (k
, QCstyle
))
3398 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3405 valid_p
= NILP (tem
);
3411 signal_error ("Invalid face box", value
);
3413 old_value
= LFACE_BOX (lface
);
3414 LFACE_BOX (lface
) = value
;
3416 else if (EQ (attr
, QCinverse_video
)
3417 || EQ (attr
, QCreverse_video
))
3419 if (!UNSPECIFIEDP (value
))
3421 CHECK_SYMBOL (value
, 3);
3422 if (!EQ (value
, Qt
) && !NILP (value
))
3423 signal_error ("Invalid inverse-video face attribute value", value
);
3425 old_value
= LFACE_INVERSE (lface
);
3426 LFACE_INVERSE (lface
) = value
;
3428 else if (EQ (attr
, QCforeground
))
3430 if (!UNSPECIFIEDP (value
))
3432 /* Don't check for valid color names here because it depends
3433 on the frame (display) whether the color will be valid
3434 when the face is realized. */
3435 CHECK_STRING (value
, 3);
3436 if (XSTRING (value
)->size
== 0)
3437 signal_error ("Empty foreground color value", value
);
3439 old_value
= LFACE_FOREGROUND (lface
);
3440 LFACE_FOREGROUND (lface
) = value
;
3442 else if (EQ (attr
, QCbackground
))
3444 if (!UNSPECIFIEDP (value
))
3446 /* Don't check for valid color names here because it depends
3447 on the frame (display) whether the color will be valid
3448 when the face is realized. */
3449 CHECK_STRING (value
, 3);
3450 if (XSTRING (value
)->size
== 0)
3451 signal_error ("Empty background color value", value
);
3453 old_value
= LFACE_BACKGROUND (lface
);
3454 LFACE_BACKGROUND (lface
) = value
;
3456 else if (EQ (attr
, QCstipple
))
3458 #ifdef HAVE_X_WINDOWS
3459 if (!UNSPECIFIEDP (value
)
3461 && NILP (Fbitmap_spec_p (value
)))
3462 signal_error ("Invalid stipple attribute", value
);
3463 old_value
= LFACE_STIPPLE (lface
);
3464 LFACE_STIPPLE (lface
) = value
;
3465 #endif /* HAVE_X_WINDOWS */
3467 else if (EQ (attr
, QCwidth
))
3469 if (!UNSPECIFIEDP (value
))
3471 CHECK_SYMBOL (value
, 3);
3472 if (face_numeric_swidth (value
) < 0)
3473 signal_error ("Invalid face width", value
);
3475 old_value
= LFACE_SWIDTH (lface
);
3476 LFACE_SWIDTH (lface
) = value
;
3477 font_related_attr_p
= 1;
3479 else if (EQ (attr
, QCfont
))
3481 #ifdef HAVE_X_WINDOWS
3482 /* Set font-related attributes of the Lisp face from an
3486 CHECK_STRING (value
, 3);
3488 f
= SELECTED_FRAME ();
3490 f
= check_x_frame (frame
);
3492 if (!set_lface_from_font_name (f
, lface
, XSTRING (value
)->data
, 1, 1))
3493 signal_error ("Invalid font name", value
);
3495 font_related_attr_p
= 1;
3496 #endif /* HAVE_X_WINDOWS */
3498 else if (EQ (attr
, QCbold
))
3500 old_value
= LFACE_WEIGHT (lface
);
3501 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3502 font_related_attr_p
= 1;
3504 else if (EQ (attr
, QCitalic
))
3506 old_value
= LFACE_SLANT (lface
);
3507 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3508 font_related_attr_p
= 1;
3511 signal_error ("Invalid face attribute name", attr
);
3513 /* Changing a named face means that all realized faces depending on
3514 that face are invalid. Since we cannot tell which realized faces
3515 depend on the face, make sure they are all removed. This is done
3516 by incrementing face_change_count. The next call to
3517 init_iterator will then free realized faces. */
3519 && (EQ (attr
, QCfont
)
3520 || NILP (Fequal (old_value
, value
))))
3522 ++face_change_count
;
3523 ++windows_or_buffers_changed
;
3526 #ifdef HAVE_X_WINDOWS
3529 && !UNSPECIFIEDP (value
)
3530 && NILP (Fequal (old_value
, value
)))
3536 if (EQ (face
, Qdefault
))
3538 /* Changed font-related attributes of the `default' face are
3539 reflected in changed `font' frame parameters. */
3540 if (font_related_attr_p
3541 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3542 set_font_frame_param (frame
, lface
);
3543 else if (EQ (attr
, QCforeground
))
3544 param
= Qforeground_color
;
3545 else if (EQ (attr
, QCbackground
))
3546 param
= Qbackground_color
;
3548 else if (EQ (face
, Qscroll_bar
))
3550 /* Changing the colors of `scroll-bar' sets frame parameters
3551 `scroll-bar-foreground' and `scroll-bar-background'. */
3552 if (EQ (attr
, QCforeground
))
3553 param
= Qscroll_bar_foreground
;
3554 else if (EQ (attr
, QCbackground
))
3555 param
= Qscroll_bar_background
;
3557 else if (EQ (face
, Qborder
))
3559 /* Changing background color of `border' sets frame parameter
3561 if (EQ (attr
, QCbackground
))
3562 param
= Qborder_color
;
3564 else if (EQ (face
, Qcursor
))
3566 /* Changing background color of `cursor' sets frame parameter
3568 if (EQ (attr
, QCbackground
))
3569 param
= Qcursor_color
;
3571 else if (EQ (face
, Qmouse
))
3573 /* Changing background color of `mouse' sets frame parameter
3575 if (EQ (attr
, QCbackground
))
3576 param
= Qmouse_color
;
3579 if (SYMBOLP (param
))
3580 Fmodify_frame_parameters (frame
, Fcons (Fcons (param
, value
), Qnil
));
3583 #endif /* HAVE_X_WINDOWS */
3589 #ifdef HAVE_X_WINDOWS
3591 /* Set the `font' frame parameter of FRAME according to `default' face
3592 attributes LFACE. */
3595 set_font_frame_param (frame
, lface
)
3596 Lisp_Object frame
, lface
;
3598 struct frame
*f
= XFRAME (frame
);
3599 Lisp_Object frame_font
;
3603 /* Get FRAME's font parameter. */
3604 frame_font
= Fassq (Qfont
, f
->param_alist
);
3605 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
3606 frame_font
= XCDR (frame_font
);
3608 fontset
= fs_query_fontset (f
, XSTRING (frame_font
)->data
);
3611 /* Frame parameter is a fontset name. Modify the fontset so
3612 that all its fonts reflect face attributes LFACE. */
3614 struct fontset_info
*fontset_info
;
3616 fontset_info
= FRAME_FONTSET_DATA (f
)->fontset_table
[fontset
];
3618 for (charset
= 0; charset
< MAX_CHARSET
; ++charset
)
3619 if (fontset_info
->fontname
[charset
])
3621 font
= choose_face_fontset_font (f
, XVECTOR (lface
)->contents
,
3623 Fset_fontset_font (frame_font
, CHARSET_SYMBOL (charset
),
3624 build_string (font
), frame
);
3630 /* Frame parameter is an X font name. I believe this can
3631 only happen in unibyte mode. */
3632 font
= choose_face_font (f
, XVECTOR (lface
)->contents
,
3633 -1, Vface_default_registry
);
3636 store_frame_param (f
, Qfont
, build_string (font
));
3643 /* Update the corresponding face when frame parameter PARAM on frame F
3644 has been assigned the value NEW_VALUE. */
3647 update_face_from_frame_parameter (f
, param
, new_value
)
3649 Lisp_Object param
, new_value
;
3653 /* If there are no faces yet, give up. This is the case when called
3654 from Fx_create_frame, and we do the necessary things later in
3655 face-set-after-frame-defaults. */
3656 if (NILP (f
->face_alist
))
3659 if (EQ (param
, Qforeground_color
))
3661 lface
= lface_from_face_name (f
, Qdefault
, 1);
3662 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3663 ? new_value
: Qunspecified
);
3664 realize_basic_faces (f
);
3666 else if (EQ (param
, Qbackground_color
))
3670 /* Changing the background color might change the background
3671 mode, so that we have to load new defface specs. Call
3672 frame-update-face-colors to do that. */
3673 XSETFRAME (frame
, f
);
3674 call1 (Qframe_update_face_colors
, frame
);
3676 lface
= lface_from_face_name (f
, Qdefault
, 1);
3677 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3678 ? new_value
: Qunspecified
);
3679 realize_basic_faces (f
);
3681 if (EQ (param
, Qborder_color
))
3683 lface
= lface_from_face_name (f
, Qborder
, 1);
3684 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3685 ? new_value
: Qunspecified
);
3687 else if (EQ (param
, Qcursor_color
))
3689 lface
= lface_from_face_name (f
, Qcursor
, 1);
3690 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3691 ? new_value
: Qunspecified
);
3693 else if (EQ (param
, Qmouse_color
))
3695 lface
= lface_from_face_name (f
, Qmouse
, 1);
3696 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3697 ? new_value
: Qunspecified
);
3702 /* Get the value of X resource RESOURCE, class CLASS for the display
3703 of frame FRAME. This is here because ordinary `x-get-resource'
3704 doesn't take a frame argument. */
3706 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3707 Sinternal_face_x_get_resource
, 3, 3, 0, "")
3708 (resource
, class, frame
)
3709 Lisp_Object resource
, class, frame
;
3712 CHECK_STRING (resource
, 0);
3713 CHECK_STRING (class, 1);
3714 CHECK_LIVE_FRAME (frame
, 2);
3716 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3717 resource
, class, Qnil
, Qnil
);
3723 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3724 If VALUE is "on" or "true", return t. If VALUE is "off" or
3725 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3726 error; if SIGNAL_P is zero, return 0. */
3729 face_boolean_x_resource_value (value
, signal_p
)
3733 Lisp_Object result
= make_number (0);
3735 xassert (STRINGP (value
));
3737 if (xstricmp (XSTRING (value
)->data
, "on") == 0
3738 || xstricmp (XSTRING (value
)->data
, "true") == 0)
3740 else if (xstricmp (XSTRING (value
)->data
, "off") == 0
3741 || xstricmp (XSTRING (value
)->data
, "false") == 0)
3743 else if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
3744 result
= Qunspecified
;
3746 signal_error ("Invalid face attribute value from X resource", value
);
3752 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3753 Finternal_set_lisp_face_attribute_from_resource
,
3754 Sinternal_set_lisp_face_attribute_from_resource
,
3756 (face
, attr
, value
, frame
)
3757 Lisp_Object face
, attr
, value
, frame
;
3759 CHECK_SYMBOL (face
, 0);
3760 CHECK_SYMBOL (attr
, 1);
3761 CHECK_STRING (value
, 2);
3763 if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
3764 value
= Qunspecified
;
3765 else if (EQ (attr
, QCheight
))
3767 value
= Fstring_to_number (value
, make_number (10));
3768 if (XINT (value
) <= 0)
3769 signal_error ("Invalid face height from X resource", value
);
3771 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3772 value
= face_boolean_x_resource_value (value
, 1);
3773 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3774 value
= intern (XSTRING (value
)->data
);
3775 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3776 value
= face_boolean_x_resource_value (value
, 1);
3777 else if (EQ (attr
, QCunderline
)
3778 || EQ (attr
, QCoverline
)
3779 || EQ (attr
, QCstrike_through
)
3780 || EQ (attr
, QCbox
))
3782 Lisp_Object boolean_value
;
3784 /* If the result of face_boolean_x_resource_value is t or nil,
3785 VALUE does NOT specify a color. */
3786 boolean_value
= face_boolean_x_resource_value (value
, 0);
3787 if (SYMBOLP (boolean_value
))
3788 value
= boolean_value
;
3791 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3796 /***********************************************************************
3798 ***********************************************************************/
3800 #ifdef USE_X_TOOLKIT
3802 /* Structure used to pass X resources to functions called via
3803 XtApplyToWidgets. */
3814 static void xm_apply_resources
P_ ((Widget
, XtPointer
));
3815 static void xm_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
3818 /* Set widget W's X resources from P which points to an x_resources
3819 structure. If W is a cascade button, apply resources to W's
3823 xm_apply_resources (w
, p
)
3828 struct x_resources
*res
= (struct x_resources
*) p
;
3830 XtSetValues (w
, res
->av
, res
->ac
);
3831 XtVaGetValues (w
, XmNsubMenuId
, &submenu
, NULL
);
3834 XtSetValues (submenu
, res
->av
, res
->ac
);
3835 XtApplyToWidgets (submenu
, xm_apply_resources
, p
);
3840 /* Set X resources of menu-widget WIDGET on frame F from face `menu'.
3841 This is the LessTif/Motif version. As of LessTif 0.88 it has the
3844 1. Setting the XmNfontList resource leads to an infinite loop
3845 somewhere in LessTif. */
3848 xm_set_menu_resources_from_menu_face (f
, widget
)
3858 lface
= lface_from_face_name (f
, Qmenu
, 1);
3859 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3861 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
3863 XtSetArg (av
[ac
], XmNforeground
, face
->foreground
);
3867 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
3869 XtSetArg (av
[ac
], XmNbackground
, face
->background
);
3873 /* If any font-related attribute of `menu' is set, set the font. */
3875 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3876 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3877 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3878 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3879 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3881 #if 0 /* Setting the font leads to an infinite loop somewhere
3882 in LessTif during geometry computation. */
3884 fe
= XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT
, face
->font
);
3885 fl
= XmFontListAppendEntry (NULL
, fe
);
3886 XtSetArg (av
[ac
], XmNfontList
, fl
);
3891 xassert (ac
<= sizeof av
/ sizeof *av
);
3895 struct x_resources res
;
3897 XtSetValues (widget
, av
, ac
);
3898 res
.av
= av
, res
.ac
= ac
;
3899 XtApplyToWidgets (widget
, xm_apply_resources
, &res
);
3901 XmFontListFree (fl
);
3906 #endif /* USE_MOTIF */
3910 static void xl_apply_resources
P_ ((Widget
, XtPointer
));
3911 static void xl_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
3914 /* Set widget W's resources from P which points to an x_resources
3918 xl_apply_resources (widget
, p
)
3922 struct x_resources
*res
= (struct x_resources
*) p
;
3923 XtSetValues (widget
, res
->av
, res
->ac
);
3927 /* On frame F, set X resources of menu-widget WIDGET from face `menu'.
3928 This is the Lucid version. */
3931 xl_set_menu_resources_from_menu_face (f
, widget
)
3940 lface
= lface_from_face_name (f
, Qmenu
, 1);
3941 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
3943 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
3945 XtSetArg (av
[ac
], XtNforeground
, face
->foreground
);
3949 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
3951 XtSetArg (av
[ac
], XtNbackground
, face
->background
);
3956 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
3957 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
3958 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
3959 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
3960 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
3962 XtSetArg (av
[ac
], XtNfont
, face
->font
);
3968 struct x_resources res
;
3970 XtSetValues (widget
, av
, ac
);
3972 /* We must do children here in case we're handling a pop-up menu
3973 in which case WIDGET is a popup shell. XtApplyToWidgets
3974 is a function from lwlib. */
3975 res
.av
= av
, res
.ac
= ac
;
3976 XtApplyToWidgets (widget
, xl_apply_resources
, &res
);
3980 #endif /* USE_LUCID */
3983 /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */
3986 x_set_menu_resources_from_menu_face (f
, widget
)
3990 /* Realized faces may have been removed on frame F, e.g. because of
3991 face attribute changes. Recompute them, if necessary, since we
3992 will need the `menu' face. */
3993 if (f
->face_cache
->used
== 0)
3994 recompute_basic_faces (f
);
3997 xl_set_menu_resources_from_menu_face (f
, widget
);
4000 xm_set_menu_resources_from_menu_face (f
, widget
);
4004 #endif /* USE_X_TOOLKIT */
4006 #endif /* HAVE_X_WINDOWS */
4010 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4011 Sinternal_get_lisp_face_attribute
,
4013 "Return face attribute KEYWORD of face SYMBOL.\n\
4014 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\
4015 face attribute name, signal an error.\n\
4016 If the optional argument FRAME is given, report on face FACE in that\n\
4017 frame. If FRAME is t, report on the defaults for face FACE (for new\n\
4018 frames). If FRAME is omitted or nil, use the selected frame.")
4019 (symbol
, keyword
, frame
)
4020 Lisp_Object symbol
, keyword
, frame
;
4022 Lisp_Object lface
, value
= Qnil
;
4024 CHECK_SYMBOL (symbol
, 0);
4025 CHECK_SYMBOL (keyword
, 1);
4028 lface
= lface_from_face_name (NULL
, symbol
, 1);
4032 frame
= selected_frame
;
4033 CHECK_LIVE_FRAME (frame
, 2);
4034 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4037 if (EQ (keyword
, QCfamily
))
4038 value
= LFACE_FAMILY (lface
);
4039 else if (EQ (keyword
, QCheight
))
4040 value
= LFACE_HEIGHT (lface
);
4041 else if (EQ (keyword
, QCweight
))
4042 value
= LFACE_WEIGHT (lface
);
4043 else if (EQ (keyword
, QCslant
))
4044 value
= LFACE_SLANT (lface
);
4045 else if (EQ (keyword
, QCunderline
))
4046 value
= LFACE_UNDERLINE (lface
);
4047 else if (EQ (keyword
, QCoverline
))
4048 value
= LFACE_OVERLINE (lface
);
4049 else if (EQ (keyword
, QCstrike_through
))
4050 value
= LFACE_STRIKE_THROUGH (lface
);
4051 else if (EQ (keyword
, QCbox
))
4052 value
= LFACE_BOX (lface
);
4053 else if (EQ (keyword
, QCinverse_video
)
4054 || EQ (keyword
, QCreverse_video
))
4055 value
= LFACE_INVERSE (lface
);
4056 else if (EQ (keyword
, QCforeground
))
4057 value
= LFACE_FOREGROUND (lface
);
4058 else if (EQ (keyword
, QCbackground
))
4059 value
= LFACE_BACKGROUND (lface
);
4060 else if (EQ (keyword
, QCstipple
))
4061 value
= LFACE_STIPPLE (lface
);
4062 else if (EQ (keyword
, QCwidth
))
4063 value
= LFACE_SWIDTH (lface
);
4065 signal_error ("Invalid face attribute name", keyword
);
4071 DEFUN ("internal-lisp-face-attribute-values",
4072 Finternal_lisp_face_attribute_values
,
4073 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4074 "Return a list of valid discrete values for face attribute ATTR.\n\
4075 Value is nil if ATTR doesn't have a discrete set of valid values.")
4079 Lisp_Object result
= Qnil
;
4081 CHECK_SYMBOL (attr
, 0);
4083 if (EQ (attr
, QCweight
)
4084 || EQ (attr
, QCslant
)
4085 || EQ (attr
, QCwidth
))
4087 /* Extract permissible symbols from tables. */
4088 struct table_entry
*table
;
4091 if (EQ (attr
, QCweight
))
4092 table
= weight_table
, dim
= DIM (weight_table
);
4093 else if (EQ (attr
, QCslant
))
4094 table
= slant_table
, dim
= DIM (slant_table
);
4096 table
= swidth_table
, dim
= DIM (swidth_table
);
4098 for (i
= 0; i
< dim
; ++i
)
4100 Lisp_Object symbol
= *table
[i
].symbol
;
4101 Lisp_Object tail
= result
;
4104 && !EQ (XCAR (tail
), symbol
))
4108 result
= Fcons (symbol
, result
);
4111 else if (EQ (attr
, QCunderline
))
4112 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4113 else if (EQ (attr
, QCoverline
))
4114 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4115 else if (EQ (attr
, QCstrike_through
))
4116 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4117 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4118 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4124 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4125 Sinternal_merge_in_global_face
, 2, 2, 0,
4126 "Add attributes from frame-default definition of FACE to FACE on FRAME.")
4128 Lisp_Object face
, frame
;
4130 Lisp_Object global_lface
, local_lface
;
4131 CHECK_LIVE_FRAME (frame
, 1);
4132 global_lface
= lface_from_face_name (NULL
, face
, 1);
4133 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4134 if (NILP (local_lface
))
4135 local_lface
= Finternal_make_lisp_face (face
, frame
);
4136 merge_face_vectors (XVECTOR (global_lface
)->contents
,
4137 XVECTOR (local_lface
)->contents
);
4142 /* The following function is implemented for compatibility with 20.2.
4143 The function is used in x-resolve-fonts when it is asked to
4144 return fonts with the same size as the font of a face. This is
4145 done in fontset.el. */
4147 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4148 "Return the font name of face FACE, or nil if it is unspecified.\n\
4149 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4150 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4151 The font default for a face is either nil, or a list\n\
4152 of the form (bold), (italic) or (bold italic).\n\
4153 If FRAME is omitted or nil, use the selected frame.")
4155 Lisp_Object face
, frame
;
4159 Lisp_Object result
= Qnil
;
4160 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4162 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4163 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4164 result
= Fcons (Qbold
, result
);
4166 if (!NILP (LFACE_SLANT (lface
))
4167 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4168 result
= Fcons (Qitalic
, result
);
4174 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4175 int face_id
= lookup_named_face (f
, face
, CHARSET_ASCII
);
4176 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4177 return build_string (face
->font_name
);
4182 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4183 all attributes are `equal'. Tries to be fast because this function
4184 is called quite often. */
4187 lface_equal_p (v1
, v2
)
4188 Lisp_Object
*v1
, *v2
;
4192 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4194 Lisp_Object a
= v1
[i
];
4195 Lisp_Object b
= v2
[i
];
4197 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4198 and the other is specified. */
4199 equal_p
= XTYPE (a
) == XTYPE (b
);
4208 equal_p
= (XSTRING (a
)->size
== XSTRING (b
)->size
4209 && bcmp (XSTRING (a
)->data
, XSTRING (b
)->data
,
4210 XSTRING (a
)->size
) == 0);
4219 equal_p
= !NILP (Fequal (a
, b
));
4229 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4230 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4231 "True if FACE1 and FACE2 are equal.\n\
4232 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4233 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4234 If FRAME is omitted or nil, use the selected frame.")
4235 (face1
, face2
, frame
)
4236 Lisp_Object face1
, face2
, frame
;
4240 Lisp_Object lface1
, lface2
;
4245 /* Don't use check_x_frame here because this function is called
4246 before X frames exist. At that time, if FRAME is nil,
4247 selected_frame will be used which is the frame dumped with
4248 Emacs. That frame is not an X frame. */
4249 f
= frame_or_selected_frame (frame
, 2);
4251 lface1
= lface_from_face_name (NULL
, face1
, 1);
4252 lface2
= lface_from_face_name (NULL
, face2
, 1);
4253 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4254 XVECTOR (lface2
)->contents
);
4255 return equal_p
? Qt
: Qnil
;
4259 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4260 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4261 "True if FACE has no attribute specified.\n\
4262 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4263 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4264 If FRAME is omitted or nil, use the selected frame.")
4266 Lisp_Object face
, frame
;
4273 frame
= selected_frame
;
4274 CHECK_LIVE_FRAME (frame
, 0);
4278 lface
= lface_from_face_name (NULL
, face
, 1);
4280 lface
= lface_from_face_name (f
, face
, 1);
4282 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4283 if (!UNSPECIFIEDP (XVECTOR (lface
)->contents
[i
]))
4286 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4290 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4292 "Return an alist of frame-local faces defined on FRAME.\n\
4293 For internal use only.")
4297 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4298 return f
->face_alist
;
4302 /* Return a hash code for Lisp string STRING with case ignored. Used
4303 below in computing a hash value for a Lisp face. */
4305 static INLINE
unsigned
4306 hash_string_case_insensitive (string
)
4311 xassert (STRINGP (string
));
4312 for (s
= XSTRING (string
)->data
; *s
; ++s
)
4313 hash
= (hash
<< 1) ^ tolower (*s
);
4318 /* Return a hash code for face attribute vector V. */
4320 static INLINE
unsigned
4324 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4325 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4326 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4327 ^ (unsigned) v
[LFACE_WEIGHT_INDEX
]
4328 ^ (unsigned) v
[LFACE_SLANT_INDEX
]
4329 ^ (unsigned) v
[LFACE_SWIDTH_INDEX
]
4330 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
4334 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4335 considering charsets/registries). They do if they specify the same
4336 family, point size, weight, width and slant. Both LFACE1 and
4337 LFACE2 must be fully-specified. */
4340 lface_same_font_attributes_p (lface1
, lface2
)
4341 Lisp_Object
*lface1
, *lface2
;
4343 xassert (lface_fully_specified_p (lface1
)
4344 && lface_fully_specified_p (lface2
));
4345 return (xstricmp (XSTRING (lface1
[LFACE_FAMILY_INDEX
])->data
,
4346 XSTRING (lface2
[LFACE_FAMILY_INDEX
])->data
) == 0
4347 && (XFASTINT (lface1
[LFACE_HEIGHT_INDEX
])
4348 == XFASTINT (lface2
[LFACE_HEIGHT_INDEX
]))
4349 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4350 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4351 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
]));
4356 /***********************************************************************
4358 ***********************************************************************/
4360 /* Allocate and return a new realized face for Lisp face attribute
4361 vector ATTR, charset CHARSET, and registry REGISTRY. */
4363 static struct face
*
4364 make_realized_face (attr
, charset
, registry
)
4367 Lisp_Object registry
;
4369 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4370 bzero (face
, sizeof *face
);
4371 face
->charset
= charset
;
4372 face
->registry
= registry
;
4373 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4378 /* Free realized face FACE, including its X resources. FACE may
4382 free_realized_face (f
, face
)
4388 #ifdef HAVE_X_WINDOWS
4393 x_free_gc (f
, face
->gc
);
4397 free_face_colors (f
, face
);
4398 x_destroy_bitmap (f
, face
->stipple
);
4400 #endif /* HAVE_X_WINDOWS */
4407 /* Prepare face FACE for subsequent display on frame F. This
4408 allocated GCs if they haven't been allocated yet or have been freed
4409 by clearing the face cache. */
4412 prepare_face_for_display (f
, face
)
4416 #ifdef HAVE_X_WINDOWS
4417 xassert (FRAME_X_P (f
));
4422 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4424 xgcv
.foreground
= face
->foreground
;
4425 xgcv
.background
= face
->background
;
4426 xgcv
.graphics_exposures
= False
;
4428 /* The font of FACE may be null if we couldn't load it. */
4431 xgcv
.font
= face
->font
->fid
;
4438 xgcv
.fill_style
= FillOpaqueStippled
;
4439 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4440 mask
|= GCFillStyle
| GCStipple
;
4443 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4450 /* Non-zero if FACE is suitable for displaying ISO8859-1. Used in
4451 macro FACE_SUITABLE_FOR_CHARSET_P to avoid realizing a new face for
4452 ISO8859-1 if the ASCII face suffices. */
4455 face_suitable_for_iso8859_1_p (face
)
4458 int len
= strlen (face
->font_name
);
4459 return len
>= 9 && xstricmp (face
->font_name
+ len
- 9, "iso8859-1") == 0;
4463 /* Value is non-zero if FACE is suitable for displaying characters
4464 of CHARSET. CHARSET < 0 means unibyte text. */
4467 face_suitable_for_charset_p (face
, charset
)
4475 if (EQ (face
->registry
, Vface_default_registry
)
4476 || !NILP (Fequal (face
->registry
, Vface_default_registry
)))
4479 else if (face
->charset
== charset
)
4481 else if (face
->charset
== CHARSET_ASCII
4482 && charset
== charset_latin_iso8859_1
)
4483 suitable_p
= face_suitable_for_iso8859_1_p (face
);
4484 else if (face
->charset
== charset_latin_iso8859_1
4485 && charset
== CHARSET_ASCII
)
4493 /***********************************************************************
4495 ***********************************************************************/
4497 /* Return a new face cache for frame F. */
4499 static struct face_cache
*
4503 struct face_cache
*c
;
4506 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4507 bzero (c
, sizeof *c
);
4508 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4509 c
->buckets
= (struct face
**) xmalloc (size
);
4510 bzero (c
->buckets
, size
);
4512 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4518 /* Clear out all graphics contexts for all realized faces, except for
4519 the basic faces. This should be done from time to time just to avoid
4520 keeping too many graphics contexts that are no longer needed. */
4524 struct face_cache
*c
;
4526 if (c
&& FRAME_X_P (c
->f
))
4528 #ifdef HAVE_X_WINDOWS
4530 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4532 struct face
*face
= c
->faces_by_id
[i
];
4533 if (face
&& face
->gc
)
4535 x_free_gc (c
->f
, face
->gc
);
4539 #endif /* HAVE_X_WINDOWS */
4544 /* Free all realized faces in face cache C, including basic faces. C
4545 may be null. If faces are freed, make sure the frame's current
4546 matrix is marked invalid, so that a display caused by an expose
4547 event doesn't try to use faces we destroyed. */
4550 free_realized_faces (c
)
4551 struct face_cache
*c
;
4556 struct frame
*f
= c
->f
;
4558 for (i
= 0; i
< c
->used
; ++i
)
4560 free_realized_face (f
, c
->faces_by_id
[i
]);
4561 c
->faces_by_id
[i
] = NULL
;
4565 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4566 bzero (c
->buckets
, size
);
4568 /* Must do a thorough redisplay the next time. Mark current
4569 matrices as invalid because they will reference faces freed
4570 above. This function is also called when a frame is
4571 destroyed. In this case, the root window of F is nil. */
4572 if (WINDOWP (f
->root_window
))
4574 clear_current_matrices (f
);
4575 ++windows_or_buffers_changed
;
4581 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4582 This is done after attributes of a named face have been changed,
4583 because we can't tell which realized faces depend on that face. */
4586 free_all_realized_faces (frame
)
4592 FOR_EACH_FRAME (rest
, frame
)
4593 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4596 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4600 /* Free face cache C and faces in it, including their X resources. */
4604 struct face_cache
*c
;
4608 free_realized_faces (c
);
4610 xfree (c
->faces_by_id
);
4616 /* Cache realized face FACE in face cache C. HASH is the hash value
4617 of FACE. If FACE->fontset >= 0, add the new face to the end of the
4618 collision list of the face hash table of C. This is done because
4619 otherwise lookup_face would find FACE for every charset, even if
4620 faces with the same attributes but for specific charsets exist. */
4623 cache_face (c
, face
, hash
)
4624 struct face_cache
*c
;
4628 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4632 if (face
->fontset
>= 0)
4634 struct face
*last
= c
->buckets
[i
];
4645 c
->buckets
[i
] = face
;
4646 face
->prev
= face
->next
= NULL
;
4652 face
->next
= c
->buckets
[i
];
4654 face
->next
->prev
= face
;
4655 c
->buckets
[i
] = face
;
4658 /* Find a free slot in C->faces_by_id and use the index of the free
4659 slot as FACE->id. */
4660 for (i
= 0; i
< c
->used
; ++i
)
4661 if (c
->faces_by_id
[i
] == NULL
)
4665 /* Maybe enlarge C->faces_by_id. */
4666 if (i
== c
->used
&& c
->used
== c
->size
)
4668 int new_size
= 2 * c
->size
;
4669 int sz
= new_size
* sizeof *c
->faces_by_id
;
4670 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4675 /* Check that FACE got a unique id. */
4680 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4681 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4687 #endif /* GLYPH_DEBUG */
4689 c
->faces_by_id
[i
] = face
;
4695 /* Remove face FACE from cache C. */
4698 uncache_face (c
, face
)
4699 struct face_cache
*c
;
4702 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4705 face
->prev
->next
= face
->next
;
4707 c
->buckets
[i
] = face
->next
;
4710 face
->next
->prev
= face
->prev
;
4712 c
->faces_by_id
[face
->id
] = NULL
;
4713 if (face
->id
== c
->used
)
4718 /* Look up a realized face with face attributes ATTR in the face cache
4719 of frame F. The face will be used to display characters of
4720 CHARSET. CHARSET < 0 means the face will be used to display
4721 unibyte text. The value of face-default-registry is used to choose
4722 a font for the face in that case. Value is the ID of the face
4723 found. If no suitable face is found, realize a new one. */
4726 lookup_face (f
, attr
, charset
)
4731 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
4736 xassert (c
!= NULL
);
4737 check_lface_attrs (attr
);
4739 /* Look up ATTR in the face cache. */
4740 hash
= lface_hash (attr
);
4741 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4743 for (face
= c
->buckets
[i
]; face
; face
= face
->next
)
4744 if (face
->hash
== hash
4745 && (!FRAME_WINDOW_P (f
)
4746 || FACE_SUITABLE_FOR_CHARSET_P (face
, charset
))
4747 && lface_equal_p (face
->lface
, attr
))
4750 /* If not found, realize a new face. */
4753 face
= realize_face (c
, attr
, charset
);
4754 cache_face (c
, face
, hash
);
4758 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4760 xassert (charset
< 0 || FACE_SUITABLE_FOR_CHARSET_P (face
, charset
));
4761 #endif /* GLYPH_DEBUG */
4767 /* Return the face id of the realized face for named face SYMBOL on
4768 frame F suitable for displaying characters from CHARSET. CHARSET <
4769 0 means unibyte text. */
4772 lookup_named_face (f
, symbol
, charset
)
4777 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4778 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4779 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4781 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
4782 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4783 merge_face_vectors (symbol_attrs
, attrs
);
4784 return lookup_face (f
, attrs
, charset
);
4788 /* Return the ID of the realized ASCII face of Lisp face with ID
4789 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4792 ascii_face_of_lisp_face (f
, lface_id
)
4798 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4800 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4801 face_id
= lookup_named_face (f
, face_name
, CHARSET_ASCII
);
4810 /* Return a face for charset ASCII that is like the face with id
4811 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4812 STEPS < 0 means larger. Value is the id of the face. */
4815 smaller_face (f
, face_id
, steps
)
4819 #ifdef HAVE_X_WINDOWS
4821 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4822 int pt
, last_pt
, last_height
;
4825 struct face
*new_face
;
4827 /* If not called for an X frame, just return the original face. */
4828 if (FRAME_TERMCAP_P (f
))
4831 /* Try in increments of 1/2 pt. */
4832 delta
= steps
< 0 ? 5 : -5;
4833 steps
= abs (steps
);
4835 face
= FACE_FROM_ID (f
, face_id
);
4836 bcopy (face
->lface
, attrs
, sizeof attrs
);
4837 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
4838 new_face_id
= face_id
;
4839 last_height
= FONT_HEIGHT (face
->font
);
4843 /* Give up if we cannot find a font within 10pt. */
4844 && abs (last_pt
- pt
) < 100)
4846 /* Look up a face for a slightly smaller/larger font. */
4848 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
4849 new_face_id
= lookup_face (f
, attrs
, CHARSET_ASCII
);
4850 new_face
= FACE_FROM_ID (f
, new_face_id
);
4852 /* If height changes, count that as one step. */
4853 if (FONT_HEIGHT (new_face
->font
) != last_height
)
4856 last_height
= FONT_HEIGHT (new_face
->font
);
4863 #else /* not HAVE_X_WINDOWS */
4867 #endif /* not HAVE_X_WINDOWS */
4871 /* Return a face for charset ASCII that is like the face with id
4872 FACE_ID on frame F, but has height HEIGHT. */
4875 face_with_height (f
, face_id
, height
)
4880 #ifdef HAVE_X_WINDOWS
4882 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4884 if (FRAME_TERMCAP_P (f
)
4888 face
= FACE_FROM_ID (f
, face_id
);
4889 bcopy (face
->lface
, attrs
, sizeof attrs
);
4890 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
4891 face_id
= lookup_face (f
, attrs
, CHARSET_ASCII
);
4892 #endif /* HAVE_X_WINDOWS */
4897 /* Return the face id of the realized face for named face SYMBOL on
4898 frame F suitable for displaying characters from CHARSET (CHARSET <
4899 0 means unibyte text), and use attributes of the face FACE_ID for
4900 attributes that aren't completely specified by SYMBOL. This is
4901 like lookup_named_face, except that the default attributes come
4902 from FACE_ID, not from the default face. FACE_ID is assumed to
4903 be already realized. */
4906 lookup_derived_face (f
, symbol
, charset
, face_id
)
4912 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4913 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4914 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
4919 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
4920 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4921 merge_face_vectors (symbol_attrs
, attrs
);
4922 return lookup_face (f
, attrs
, charset
);
4927 /***********************************************************************
4929 ***********************************************************************/
4931 DEFUN ("internal-set-font-selection-order",
4932 Finternal_set_font_selection_order
,
4933 Sinternal_set_font_selection_order
, 1, 1, 0,
4934 "Set font selection order for face font selection to ORDER.\n\
4935 ORDER must be a list of length 4 containing the symbols `:width',\n\
4936 `:height', `:weight', and `:slant'. Face attributes appearing\n\
4937 first in ORDER are matched first, e.g. if `:height' appears before\n\
4938 `:weight' in ORDER, font selection first tries to find a font with\n\
4939 a suitable height, and then tries to match the font weight.\n\
4948 CHECK_LIST (order
, 0);
4949 bzero (indices
, sizeof indices
);
4953 CONSP (list
) && i
< DIM (indices
);
4954 list
= XCDR (list
), ++i
)
4956 Lisp_Object attr
= XCAR (list
);
4959 if (EQ (attr
, QCwidth
))
4961 else if (EQ (attr
, QCheight
))
4962 xlfd
= XLFD_POINT_SIZE
;
4963 else if (EQ (attr
, QCweight
))
4965 else if (EQ (attr
, QCslant
))
4970 if (indices
[i
] != 0)
4976 || i
!= DIM (indices
)
4981 signal_error ("Invalid font sort order", order
);
4983 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
4985 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
4986 free_all_realized_faces (Qnil
);
4993 DEFUN ("internal-set-alternative-font-family-alist",
4994 Finternal_set_alternative_font_family_alist
,
4995 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
4996 "Define alternative font families to try in face font selection.\n\
4997 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
4998 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\
4999 be found. Value is ALIST.")
5003 CHECK_LIST (alist
, 0);
5004 Vface_alternative_font_family_alist
= alist
;
5005 free_all_realized_faces (Qnil
);
5010 #ifdef HAVE_X_WINDOWS
5012 /* Return the X registry and encoding of font name FONT_NAME on frame F.
5013 Value is nil if not successful. */
5016 deduce_unibyte_registry (f
, font_name
)
5020 struct font_name font
;
5021 Lisp_Object registry
= Qnil
;
5023 font
.name
= STRDUPA (font_name
);
5024 if (split_font_name (f
, &font
, 0))
5028 /* Extract registry and encoding. */
5029 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_REGISTRY
])
5030 + strlen (font
.fields
[XLFD_ENCODING
])
5032 strcpy (buffer
, font
.fields
[XLFD_REGISTRY
]);
5033 strcat (buffer
, "-");
5034 strcat (buffer
, font
.fields
[XLFD_ENCODING
]);
5035 registry
= build_string (buffer
);
5042 /* Value is non-zero if FONT is the name of a scalable font. The
5043 X11R6 XLFD spec says that point size, pixel size, and average width
5044 are zero for scalable fonts. Intlfonts contain at least one
5045 scalable font ("*-muleindian-1") for which this isn't true, so we
5046 just test average width. */
5049 font_scalable_p (font
)
5050 struct font_name
*font
;
5052 char *s
= font
->fields
[XLFD_AVGWIDTH
];
5053 return *s
== '0' && *(s
+ 1) == '\0';
5057 /* Value is non-zero if FONT1 is a better match for font attributes
5058 VALUES than FONT2. VALUES is an array of face attribute values in
5059 font sort order. COMPARE_PT_P zero means don't compare point
5063 better_font_p (values
, font1
, font2
, compare_pt_p
)
5065 struct font_name
*font1
, *font2
;
5070 for (i
= 0; i
< 4; ++i
)
5072 int xlfd_idx
= font_sort_order
[i
];
5074 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
5076 int delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
5077 int delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
5079 if (delta1
> delta2
)
5081 else if (delta1
< delta2
)
5085 /* The difference may be equal because, e.g., the face
5086 specifies `italic' but we have only `regular' and
5087 `oblique'. Prefer `oblique' in this case. */
5088 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
5089 && font1
->numeric
[xlfd_idx
] > values
[i
]
5090 && font2
->numeric
[xlfd_idx
] < values
[i
])
5102 /* Value is non-zero if FONT is an exact match for face attributes in
5103 SPECIFIED. SPECIFIED is an array of face attribute values in font
5107 exact_face_match_p (specified
, font
)
5109 struct font_name
*font
;
5113 for (i
= 0; i
< 4; ++i
)
5114 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
5121 /* Value is the name of a scaled font, generated from scalable font
5122 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
5123 Value is allocated from heap. */
5126 build_scalable_font_name (f
, font
, specified_pt
)
5128 struct font_name
*font
;
5131 char point_size
[20], pixel_size
[20];
5133 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
5136 /* If scalable font is for a specific resolution, compute
5137 the point size we must specify from the resolution of
5138 the display and the specified resolution of the font. */
5139 if (font
->numeric
[XLFD_RESY
] != 0)
5141 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
5142 pixel_value
= font
->numeric
[XLFD_RESY
] / 720.0 * pt
;
5147 pixel_value
= resy
/ 720.0 * pt
;
5150 /* Set point size of the font. */
5151 sprintf (point_size
, "%d", (int) pt
);
5152 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
5153 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
5155 /* Set pixel size. */
5156 sprintf (pixel_size
, "%d", pixel_value
);
5157 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
5158 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
5160 /* If font doesn't specify its resolution, use the
5161 resolution of the display. */
5162 if (font
->numeric
[XLFD_RESY
] == 0)
5165 sprintf (buffer
, "%d", (int) resy
);
5166 font
->fields
[XLFD_RESY
] = buffer
;
5167 font
->numeric
[XLFD_RESY
] = resy
;
5170 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
5173 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
5174 sprintf (buffer
, "%d", resx
);
5175 font
->fields
[XLFD_RESX
] = buffer
;
5176 font
->numeric
[XLFD_RESX
] = resx
;
5179 return build_font_name (font
);
5183 /* Value is non-zero if we are allowed to use scalable font FONT. We
5184 can't run a Lisp function here since this function may be called
5185 with input blocked. */
5188 may_use_scalable_font_p (font
, name
)
5189 struct font_name
*font
;
5192 if (EQ (Vscalable_fonts_allowed
, Qt
))
5194 else if (CONSP (Vscalable_fonts_allowed
))
5196 Lisp_Object tail
, regexp
;
5198 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
5200 regexp
= XCAR (tail
);
5201 if (STRINGP (regexp
)
5202 && fast_c_string_match_ignore_case (regexp
, name
) >= 0)
5210 #endif /* SCALABLE_FONTS != 0 */
5213 /* Return the name of the best matching font for face attributes
5214 ATTRS in the array of font_name structures FONTS which contains
5215 NFONTS elements. Value is a font name which is allocated from
5216 the heap. FONTS is freed by this function. */
5219 best_matching_font (f
, attrs
, fonts
, nfonts
)
5222 struct font_name
*fonts
;
5226 struct font_name
*best
;
5234 /* Make specified font attributes available in `specified',
5235 indexed by sort order. */
5236 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5238 int xlfd_idx
= font_sort_order
[i
];
5240 if (xlfd_idx
== XLFD_SWIDTH
)
5241 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
5242 else if (xlfd_idx
== XLFD_POINT_SIZE
)
5243 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5244 else if (xlfd_idx
== XLFD_WEIGHT
)
5245 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5246 else if (xlfd_idx
== XLFD_SLANT
)
5247 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
5257 /* Start with the first non-scalable font in the list. */
5258 for (i
= 0; i
< nfonts
; ++i
)
5259 if (!font_scalable_p (fonts
+ i
))
5262 /* Find the best match among the non-scalable fonts. */
5267 for (i
= 1; i
< nfonts
; ++i
)
5268 if (!font_scalable_p (fonts
+ i
)
5269 && better_font_p (specified
, fonts
+ i
, best
, 1))
5273 exact_p
= exact_face_match_p (specified
, best
);
5282 /* Unless we found an exact match among non-scalable fonts, see if
5283 we can find a better match among scalable fonts. */
5286 /* A scalable font is better if
5288 1. its weight, slant, swidth attributes are better, or.
5290 2. the best non-scalable font doesn't have the required
5291 point size, and the scalable fonts weight, slant, swidth
5294 int non_scalable_has_exact_height_p
;
5296 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
5297 non_scalable_has_exact_height_p
= 1;
5299 non_scalable_has_exact_height_p
= 0;
5301 for (i
= 0; i
< nfonts
; ++i
)
5302 if (font_scalable_p (fonts
+ i
))
5305 || better_font_p (specified
, fonts
+ i
, best
, 0)
5306 || (!non_scalable_has_exact_height_p
5307 && !better_font_p (specified
, best
, fonts
+ i
, 0)))
5312 if (font_scalable_p (best
))
5313 font_name
= build_scalable_font_name (f
, best
, pt
);
5315 font_name
= build_font_name (best
);
5317 #else /* !SCALABLE_FONTS */
5319 /* Find the best non-scalable font. */
5322 for (i
= 1; i
< nfonts
; ++i
)
5324 xassert (!font_scalable_p (fonts
+ i
));
5325 if (better_font_p (specified
, fonts
+ i
, best
, 1))
5329 font_name
= build_font_name (best
);
5331 #endif /* !SCALABLE_FONTS */
5333 /* Free font_name structures. */
5334 free_font_names (fonts
, nfonts
);
5340 /* Try to get a list of fonts on frame F with font family FAMILY and
5341 registry/encoding REGISTRY. Return in *FONTS a pointer to a vector
5342 of font_name structures for the fonts matched. Value is the number
5346 try_font_list (f
, attrs
, pattern
, family
, registry
, fonts
)
5349 char *pattern
, *family
, *registry
;
5350 struct font_name
**fonts
;
5355 family
= LSTRDUPA (attrs
[LFACE_FAMILY_INDEX
]);
5357 nfonts
= font_list (f
, pattern
, family
, registry
, fonts
);
5363 /* Try alternative font families from
5364 Vface_alternative_font_family_alist. */
5365 alter
= Fassoc (build_string (family
),
5366 Vface_alternative_font_family_alist
);
5368 for (alter
= XCDR (alter
);
5369 CONSP (alter
) && nfonts
== 0;
5370 alter
= XCDR (alter
))
5372 if (STRINGP (XCAR (alter
)))
5374 family
= LSTRDUPA (XCAR (alter
));
5375 nfonts
= font_list (f
, NULL
, family
, registry
, fonts
);
5379 /* Try font family of the default face or "fixed". */
5382 struct face
*dflt
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5384 family
= LSTRDUPA (dflt
->lface
[LFACE_FAMILY_INDEX
]);
5387 nfonts
= font_list (f
, NULL
, family
, registry
, fonts
);
5390 /* Try any family with the given registry. */
5392 nfonts
= font_list (f
, NULL
, "*", registry
, fonts
);
5399 /* Return the registry and encoding pattern that fonts for CHARSET
5400 should match. Value is allocated from the heap. */
5403 x_charset_registry (charset
)
5406 Lisp_Object prop
, charset_plist
;
5409 /* Get registry and encoding from the charset's plist. */
5410 charset_plist
= CHARSET_TABLE_INFO (charset
, CHARSET_PLIST_IDX
);
5411 prop
= Fplist_get (charset_plist
, Qx_charset_registry
);
5415 if (index (XSTRING (prop
)->data
, '-'))
5416 registry
= xstrdup (XSTRING (prop
)->data
);
5419 /* If registry doesn't contain a `-', make it a pattern. */
5420 registry
= (char *) xmalloc (STRING_BYTES (XSTRING (prop
)) + 5);
5421 strcpy (registry
, XSTRING (prop
)->data
);
5422 strcat (registry
, "*-*");
5425 else if (STRINGP (Vface_default_registry
))
5426 registry
= xstrdup (XSTRING (Vface_default_registry
)->data
);
5428 registry
= xstrdup ("iso8859-1");
5434 /* Return the fontset id of the fontset name or alias name given by
5435 the family attribute of ATTRS on frame F. Value is -1 if the
5436 family attribute of ATTRS doesn't name a fontset. */
5439 face_fontset (f
, attrs
)
5443 Lisp_Object name
= attrs
[LFACE_FAMILY_INDEX
];
5446 name
= Fquery_fontset (name
, Qnil
);
5450 fontset
= fs_query_fontset (f
, XSTRING (name
)->data
);
5456 /* Get the font to use for the face realizing the fully-specified Lisp
5457 face ATTRS for charset CHARSET on frame F. CHARSET < 0 means
5458 unibyte text; UNIBYTE_REGISTRY is the registry and encoding to use
5459 in this case. Value is the font name which is allocated from the
5460 heap (which means that it must be freed eventually). */
5463 choose_face_font (f
, attrs
, charset
, unibyte_registry
)
5467 Lisp_Object unibyte_registry
;
5469 struct font_name
*fonts
;
5473 /* ATTRS must be fully-specified. */
5474 xassert (lface_fully_specified_p (attrs
));
5476 if (STRINGP (unibyte_registry
))
5477 registry
= xstrdup (XSTRING (unibyte_registry
)->data
);
5479 registry
= x_charset_registry (charset
);
5481 nfonts
= try_font_list (f
, attrs
, NULL
, NULL
, registry
, &fonts
);
5483 return best_matching_font (f
, attrs
, fonts
, nfonts
);
5487 /* Choose a font to use on frame F to display CHARSET using FONTSET
5488 with Lisp face attributes specified by ATTRS. CHARSET may be any
5489 valid charset. CHARSET < 0 means unibyte text. If the fontset
5490 doesn't contain a font pattern for charset, use the pattern for
5491 CHARSET_ASCII. Value is the font name which is allocated from the
5492 heap and must be freed by the caller. */
5495 choose_face_fontset_font (f
, attrs
, fontset
, charset
)
5498 int fontset
, charset
;
5501 char *font_name
= NULL
;
5502 struct fontset_info
*fontset_info
;
5503 struct font_name
*fonts
;
5506 xassert (fontset
>= 0 && fontset
< FRAME_FONTSET_DATA (f
)->n_fontsets
);
5508 /* For unibyte text, use the ASCII font of the fontset. Using the
5509 ASCII font seems to be the most reasonable thing we can do in
5512 charset
= CHARSET_ASCII
;
5514 /* Get the font name pattern to use for CHARSET from the fontset. */
5515 fontset_info
= FRAME_FONTSET_DATA (f
)->fontset_table
[fontset
];
5516 pattern
= fontset_info
->fontname
[charset
];
5518 pattern
= fontset_info
->fontname
[CHARSET_ASCII
];
5521 /* Get a list of fonts matching that pattern and choose the
5522 best match for the specified face attributes from it. */
5523 nfonts
= try_font_list (f
, attrs
, pattern
, NULL
, NULL
, &fonts
);
5524 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
);
5528 #endif /* HAVE_X_WINDOWS */
5532 /***********************************************************************
5534 ***********************************************************************/
5536 /* Realize basic faces on frame F. Value is zero if frame parameters
5537 of F don't contain enough information needed to realize the default
5541 realize_basic_faces (f
)
5546 if (realize_default_face (f
))
5548 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5549 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5550 realize_named_face (f
, Qfringe
, BITMAP_AREA_FACE_ID
);
5551 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5552 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5553 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5554 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5555 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5556 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5564 /* Realize the default face on frame F. If the face is not fully
5565 specified, make it fully-specified. Attributes of the default face
5566 that are not explicitly specified are taken from frame parameters. */
5569 realize_default_face (f
)
5572 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5574 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5575 Lisp_Object unibyte_registry
;
5576 Lisp_Object frame_font
;
5580 /* If the `default' face is not yet known, create it. */
5581 lface
= lface_from_face_name (f
, Qdefault
, 0);
5585 XSETFRAME (frame
, f
);
5586 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5589 #ifdef HAVE_X_WINDOWS
5592 /* Set frame_font to the value of the `font' frame parameter. */
5593 frame_font
= Fassq (Qfont
, f
->param_alist
);
5594 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
5595 frame_font
= XCDR (frame_font
);
5597 fontset
= fs_query_fontset (f
, XSTRING (frame_font
)->data
);
5600 /* If frame_font is a fontset name, don't use that for
5601 determining font-related attributes of the default face
5602 because it is just an artificial name. Use the ASCII font of
5603 the fontset, instead. */
5604 struct font_info
*font_info
;
5605 struct font_name font
;
5608 font_info
= FS_LOAD_FONT (f
, FRAME_X_FONT_TABLE (f
), CHARSET_ASCII
,
5612 /* Set weight etc. from the ASCII font. */
5613 if (!set_lface_from_font_name (f
, lface
, font_info
->full_name
, 0, 0))
5616 /* Remember registry and encoding of the frame font. */
5617 unibyte_registry
= deduce_unibyte_registry (f
, font_info
->full_name
);
5618 if (STRINGP (unibyte_registry
))
5619 Vface_default_registry
= unibyte_registry
;
5621 Vface_default_registry
= build_string ("iso8859-1");
5623 /* But set the family to the fontset alias name. Implementation
5624 note: When a font is passed to Emacs via `-fn FONT', a
5625 fontset is created in `x-win.el' whose name ends in
5626 `fontset-startup'. This fontset has an alias name that is
5627 equal to frame_font. */
5628 xassert (STRINGP (frame_font
));
5629 font
.name
= LSTRDUPA (frame_font
);
5631 if (!split_font_name (f
, &font
, 1)
5632 || xstricmp (font
.fields
[XLFD_REGISTRY
], "fontset") != 0
5633 || xstricmp (font
.fields
[XLFD_ENCODING
], "startup") != 0)
5634 LFACE_FAMILY (lface
) = frame_font
;
5638 /* Frame parameters contain a real font. Fill default face
5639 attributes from that font. */
5640 if (!set_lface_from_font_name (f
, lface
,
5641 XSTRING (frame_font
)->data
, 0, 0))
5644 /* Remember registry and encoding of the frame font. */
5646 = deduce_unibyte_registry (f
, XSTRING (frame_font
)->data
);
5647 if (STRINGP (unibyte_registry
))
5648 Vface_default_registry
= unibyte_registry
;
5650 Vface_default_registry
= build_string ("iso8859-1");
5653 #endif /* HAVE_X_WINDOWS */
5655 if (!FRAME_WINDOW_P (f
))
5657 LFACE_FAMILY (lface
) = build_string ("default");
5658 LFACE_SWIDTH (lface
) = Qnormal
;
5659 LFACE_HEIGHT (lface
) = make_number (1);
5660 LFACE_WEIGHT (lface
) = Qnormal
;
5661 LFACE_SLANT (lface
) = Qnormal
;
5664 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5665 LFACE_UNDERLINE (lface
) = Qnil
;
5667 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5668 LFACE_OVERLINE (lface
) = Qnil
;
5670 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5671 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5673 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5674 LFACE_BOX (lface
) = Qnil
;
5676 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5677 LFACE_INVERSE (lface
) = Qnil
;
5679 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5681 /* This function is called so early that colors are not yet
5682 set in the frame parameter list. */
5683 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5685 if (CONSP (color
) && STRINGP (XCDR (color
)))
5686 LFACE_FOREGROUND (lface
) = XCDR (color
);
5687 else if (FRAME_X_P (f
))
5689 else if (!FRAME_TERMCAP_P (f
) && !FRAME_MSDOS_P (f
))
5693 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5695 /* This function is called so early that colors are not yet
5696 set in the frame parameter list. */
5697 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5698 if (CONSP (color
) && STRINGP (XCDR (color
)))
5699 LFACE_BACKGROUND (lface
) = XCDR (color
);
5700 else if (FRAME_X_P (f
))
5702 else if (!FRAME_TERMCAP_P (f
) && !FRAME_MSDOS_P (f
))
5706 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5707 LFACE_STIPPLE (lface
) = Qnil
;
5709 /* Realize the face; it must be fully-specified now. */
5710 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5711 check_lface (lface
);
5712 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5713 face
= realize_face (c
, attrs
, CHARSET_ASCII
);
5715 /* Remove the former default face. */
5716 if (c
->used
> DEFAULT_FACE_ID
)
5718 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5719 uncache_face (c
, default_face
);
5720 free_realized_face (f
, default_face
);
5723 /* Insert the new default face. */
5724 cache_face (c
, face
, lface_hash (attrs
));
5725 xassert (face
->id
== DEFAULT_FACE_ID
);
5730 /* Realize basic faces other than the default face in face cache C.
5731 SYMBOL is the face name, ID is the face id the realized face must
5732 have. The default face must have been realized already. */
5735 realize_named_face (f
, symbol
, id
)
5740 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5741 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5742 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5743 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5744 struct face
*new_face
;
5746 /* The default face must exist and be fully specified. */
5747 get_lface_attributes (f
, Qdefault
, attrs
, 1);
5748 check_lface_attrs (attrs
);
5749 xassert (lface_fully_specified_p (attrs
));
5751 /* If SYMBOL isn't know as a face, create it. */
5755 XSETFRAME (frame
, f
);
5756 lface
= Finternal_make_lisp_face (symbol
, frame
);
5759 /* Merge SYMBOL's face with the default face. */
5760 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5761 merge_face_vectors (symbol_attrs
, attrs
);
5763 /* Realize the face. */
5764 new_face
= realize_face (c
, attrs
, CHARSET_ASCII
);
5766 /* Remove the former face. */
5769 struct face
*old_face
= c
->faces_by_id
[id
];
5770 uncache_face (c
, old_face
);
5771 free_realized_face (f
, old_face
);
5774 /* Insert the new face. */
5775 cache_face (c
, new_face
, lface_hash (attrs
));
5776 xassert (new_face
->id
== id
);
5780 /* Realize the fully-specified face with attributes ATTRS in face
5781 cache C for character set CHARSET or for unibyte text if CHARSET <
5782 0. Value is a pointer to the newly created realized face. */
5784 static struct face
*
5785 realize_face (c
, attrs
, charset
)
5786 struct face_cache
*c
;
5792 /* LFACE must be fully specified. */
5793 xassert (c
!= NULL
);
5794 check_lface_attrs (attrs
);
5796 if (FRAME_X_P (c
->f
))
5797 face
= realize_x_face (c
, attrs
, charset
);
5798 else if (FRAME_TERMCAP_P (c
->f
) || FRAME_MSDOS_P (c
->f
))
5799 face
= realize_tty_face (c
, attrs
, charset
);
5807 /* Realize the fully-specified face with attributes ATTRS in face
5808 cache C for character set CHARSET or for unibyte text if CHARSET <
5809 0. Do it for X frame C->f. Value is a pointer to the newly
5810 created realized face. */
5812 static struct face
*
5813 realize_x_face (c
, attrs
, charset
)
5814 struct face_cache
*c
;
5818 #ifdef HAVE_X_WINDOWS
5819 struct face
*face
, *default_face
;
5821 Lisp_Object stipple
, overline
, strike_through
, box
;
5822 Lisp_Object unibyte_registry
;
5823 struct gcpro gcpro1
;
5825 xassert (FRAME_X_P (f
));
5827 /* If realizing a face for use in unibyte text, get the X registry
5828 and encoding to use from Vface_default_registry. */
5830 unibyte_registry
= (STRINGP (Vface_default_registry
)
5831 ? Vface_default_registry
5832 : build_string ("iso8859-1"));
5834 unibyte_registry
= Qnil
;
5835 GCPRO1 (unibyte_registry
);
5837 /* Allocate a new realized face. */
5838 face
= make_realized_face (attrs
, charset
, unibyte_registry
);
5841 /* Determine the font to use. Most of the time, the font will be
5842 the same as the font of the default face, so try that first. */
5843 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5845 && FACE_SUITABLE_FOR_CHARSET_P (default_face
, charset
)
5846 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5848 face
->font
= default_face
->font
;
5849 face
->fontset
= default_face
->fontset
;
5850 face
->font_info_id
= default_face
->font_info_id
;
5851 face
->font_name
= default_face
->font_name
;
5852 face
->registry
= default_face
->registry
;
5854 else if (charset
>= 0)
5856 /* For all charsets, we use our own font selection functions to
5857 choose a best matching font for the specified face
5858 attributes. If the face specifies a fontset alias name, the
5859 fontset determines the font name pattern, otherwise we
5860 construct a font pattern from face attributes and charset. */
5862 char *font_name
= NULL
;
5863 int fontset
= face_fontset (f
, attrs
);
5866 font_name
= choose_face_font (f
, attrs
, charset
, Qnil
);
5869 font_name
= choose_face_fontset_font (f
, attrs
, fontset
, charset
);
5873 load_face_font_or_fontset (f
, face
, font_name
, fontset
);
5878 /* Unibyte case, and font is not equal to that of the default
5879 face. UNIBYTE_REGISTRY is the X registry and encoding the
5880 font should have. What is a reasonable thing to do if the
5881 user specified a fontset alias name for the face in this
5882 case? We choose a font by taking the ASCII font of the
5883 fontset, but using UNIBYTE_REGISTRY for its registry and
5886 char *font_name
= NULL
;
5887 int fontset
= face_fontset (f
, attrs
);
5890 font_name
= choose_face_font (f
, attrs
, charset
, unibyte_registry
);
5892 font_name
= choose_face_fontset_font (f
, attrs
, fontset
, charset
);
5894 load_face_font_or_fontset (f
, face
, font_name
, -1);
5898 /* Load colors, and set remaining attributes. */
5900 load_face_colors (f
, face
, attrs
);
5903 box
= attrs
[LFACE_BOX_INDEX
];
5906 /* A simple box of line width 1 drawn in color given by
5908 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5910 face
->box
= FACE_SIMPLE_BOX
;
5911 face
->box_line_width
= 1;
5913 else if (INTEGERP (box
))
5915 /* Simple box of specified line width in foreground color of the
5917 xassert (XINT (box
) > 0);
5918 face
->box
= FACE_SIMPLE_BOX
;
5919 face
->box_line_width
= XFASTINT (box
);
5920 face
->box_color
= face
->foreground
;
5921 face
->box_color_defaulted_p
= 1;
5923 else if (CONSP (box
))
5925 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5926 being one of `raised' or `sunken'. */
5927 face
->box
= FACE_SIMPLE_BOX
;
5928 face
->box_color
= face
->foreground
;
5929 face
->box_color_defaulted_p
= 1;
5930 face
->box_line_width
= 1;
5934 Lisp_Object keyword
, value
;
5936 keyword
= XCAR (box
);
5944 if (EQ (keyword
, QCline_width
))
5946 if (INTEGERP (value
) && XINT (value
) > 0)
5947 face
->box_line_width
= XFASTINT (value
);
5949 else if (EQ (keyword
, QCcolor
))
5951 if (STRINGP (value
))
5953 face
->box_color
= load_color (f
, face
, value
,
5955 face
->use_box_color_for_shadows_p
= 1;
5958 else if (EQ (keyword
, QCstyle
))
5960 if (EQ (value
, Qreleased_button
))
5961 face
->box
= FACE_RAISED_BOX
;
5962 else if (EQ (value
, Qpressed_button
))
5963 face
->box
= FACE_SUNKEN_BOX
;
5968 /* Text underline, overline, strike-through. */
5970 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
5972 /* Use default color (same as foreground color). */
5973 face
->underline_p
= 1;
5974 face
->underline_defaulted_p
= 1;
5975 face
->underline_color
= 0;
5977 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
5979 /* Use specified color. */
5980 face
->underline_p
= 1;
5981 face
->underline_defaulted_p
= 0;
5982 face
->underline_color
5983 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
5984 LFACE_UNDERLINE_INDEX
);
5986 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
5988 face
->underline_p
= 0;
5989 face
->underline_defaulted_p
= 0;
5990 face
->underline_color
= 0;
5993 overline
= attrs
[LFACE_OVERLINE_INDEX
];
5994 if (STRINGP (overline
))
5996 face
->overline_color
5997 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
5998 LFACE_OVERLINE_INDEX
);
5999 face
->overline_p
= 1;
6001 else if (EQ (overline
, Qt
))
6003 face
->overline_color
= face
->foreground
;
6004 face
->overline_color_defaulted_p
= 1;
6005 face
->overline_p
= 1;
6008 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
6009 if (STRINGP (strike_through
))
6011 face
->strike_through_color
6012 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6013 LFACE_STRIKE_THROUGH_INDEX
);
6014 face
->strike_through_p
= 1;
6016 else if (EQ (strike_through
, Qt
))
6018 face
->strike_through_color
= face
->foreground
;
6019 face
->strike_through_color_defaulted_p
= 1;
6020 face
->strike_through_p
= 1;
6023 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6024 if (!NILP (stipple
))
6025 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6028 xassert (face
->fontset
< 0);
6029 xassert (FACE_SUITABLE_FOR_CHARSET_P (face
, charset
));
6031 #endif /* HAVE_X_WINDOWS */
6035 /* Realize the fully-specified face with attributes ATTRS in face
6036 cache C for character set CHARSET or for unibyte text if CHARSET <
6037 0. Do it for TTY frame C->f. Value is a pointer to the newly
6038 created realized face. */
6040 static struct face
*
6041 realize_tty_face (c
, attrs
, charset
)
6042 struct face_cache
*c
;
6049 Lisp_Object tty_color_alist
= Fsymbol_value (intern ("tty-color-alist"));
6050 int face_colors_defaulted
= 0;
6052 /* Frame must be a termcap frame. */
6053 xassert (FRAME_TERMCAP_P (c
->f
) || FRAME_MSDOS_P (c
->f
));
6055 /* Allocate a new realized face. */
6056 face
= make_realized_face (attrs
, charset
, Qnil
);
6057 face
->font_name
= FRAME_MSDOS_P (c
->f
) ? "ms-dos" : "tty";
6059 /* Map face attributes to TTY appearances. We map slant to
6060 dimmed text because we want italic text to appear differently
6061 and because dimmed text is probably used infrequently. */
6062 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6063 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6065 if (weight
> XLFD_WEIGHT_MEDIUM
)
6066 face
->tty_bold_p
= 1;
6067 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
6068 face
->tty_dim_p
= 1;
6069 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6070 face
->tty_underline_p
= 1;
6071 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6072 face
->tty_reverse_p
= 1;
6074 /* Map color names to color indices. */
6075 face
->foreground
= face
->background
= FACE_TTY_DEFAULT_COLOR
;
6077 color
= attrs
[LFACE_FOREGROUND_INDEX
];
6079 && XSTRING (color
)->size
6080 && !NILP (tty_color_alist
)
6081 && (color
= Fassoc (color
, tty_color_alist
),
6083 /* Associations in tty-color-alist are of the form
6084 (NAME INDEX R G B). We need the INDEX part. */
6085 face
->foreground
= XINT (XCAR (XCDR (color
)));
6087 if (face
->foreground
== FACE_TTY_DEFAULT_COLOR
6088 && STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]))
6090 face
->foreground
= load_color (c
->f
, face
,
6091 attrs
[LFACE_FOREGROUND_INDEX
],
6092 LFACE_FOREGROUND_INDEX
);
6094 /* If the foreground of the default face is the default color,
6095 use the foreground color defined by the frame. */
6096 if (FRAME_MSDOS_P (c
->f
) && face
->foreground
== FACE_TTY_DEFAULT_COLOR
)
6098 face
->foreground
= FRAME_FOREGROUND_PIXEL (f
);
6099 attrs
[LFACE_FOREGROUND_INDEX
] =
6100 msdos_stdcolor_name (face
->foreground
);
6101 face_colors_defaulted
= 1;
6106 color
= attrs
[LFACE_BACKGROUND_INDEX
];
6108 && XSTRING (color
)->size
6109 && !NILP (tty_color_alist
)
6110 && (color
= Fassoc (color
, tty_color_alist
),
6112 /* Associations in tty-color-alist are of the form
6113 (NAME INDEX R G B). We need the INDEX part. */
6114 face
->background
= XINT (XCAR (XCDR (color
)));
6116 if (face
->background
== FACE_TTY_DEFAULT_COLOR
6117 && STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]))
6119 face
->background
= load_color (c
->f
, face
,
6120 attrs
[LFACE_BACKGROUND_INDEX
],
6121 LFACE_BACKGROUND_INDEX
);
6123 /* If the background of the default face is the default color,
6124 use the background color defined by the frame. */
6125 if (FRAME_MSDOS_P (c
->f
) && face
->background
== FACE_TTY_DEFAULT_COLOR
)
6127 face
->background
= FRAME_BACKGROUND_PIXEL (f
);
6128 attrs
[LFACE_BACKGROUND_INDEX
] =
6129 msdos_stdcolor_name (face
->background
);
6130 face_colors_defaulted
= 1;
6135 /* Swap colors if face is inverse-video. If the colors are taken
6136 from the frame colors, they are already inverted, since the
6137 frame-creation function calls x-handle-reverse-video. */
6138 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6140 unsigned long tem
= face
->foreground
;
6142 face
->foreground
= face
->background
;
6143 face
->background
= tem
;
6151 /***********************************************************************
6153 ***********************************************************************/
6155 /* Return the ID of the face to use to display character CH with face
6156 property PROP on frame F in current_buffer. */
6159 compute_char_face (f
, ch
, prop
)
6165 int charset
= (NILP (current_buffer
->enable_multibyte_characters
)
6167 : CHAR_CHARSET (ch
));
6170 face_id
= FACE_FOR_CHARSET (f
, DEFAULT_FACE_ID
, charset
);
6173 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6174 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6175 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6176 merge_face_vector_with_property (f
, attrs
, prop
);
6177 face_id
= lookup_face (f
, attrs
, charset
);
6184 /* Return the face ID associated with buffer position POS for
6185 displaying ASCII characters. Return in *ENDPTR the position at
6186 which a different face is needed, as far as text properties and
6187 overlays are concerned. W is a window displaying current_buffer.
6189 REGION_BEG, REGION_END delimit the region, so it can be
6192 LIMIT is a position not to scan beyond. That is to limit the time
6193 this function can take.
6195 If MOUSE is non-zero, use the character's mouse-face, not its face.
6197 The face returned is suitable for displaying CHARSET_ASCII if
6198 current_buffer->enable_multibyte_characters is non-nil. Otherwise,
6199 the face is suitable for displaying unibyte text. */
6202 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6203 endptr
, limit
, mouse
)
6206 int region_beg
, region_end
;
6211 struct frame
*f
= XFRAME (w
->frame
);
6212 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6213 Lisp_Object prop
, position
;
6215 Lisp_Object
*overlay_vec
;
6218 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6219 Lisp_Object limit1
, end
;
6220 struct face
*default_face
;
6221 int multibyte_p
= !NILP (current_buffer
->enable_multibyte_characters
);
6223 /* W must display the current buffer. We could write this function
6224 to use the frame and buffer of W, but right now it doesn't. */
6225 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6227 XSETFRAME (frame
, f
);
6228 XSETFASTINT (position
, pos
);
6231 if (pos
< region_beg
&& region_beg
< endpos
)
6232 endpos
= region_beg
;
6234 /* Get the `face' or `mouse_face' text property at POS, and
6235 determine the next position at which the property changes. */
6236 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6237 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6238 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6240 endpos
= XINT (end
);
6242 /* Look at properties from overlays. */
6247 /* First try with room for 40 overlays. */
6249 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6250 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6251 &next_overlay
, NULL
);
6253 /* If there are more than 40, make enough space for all, and try
6255 if (noverlays
> len
)
6258 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6259 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6260 &next_overlay
, NULL
);
6263 if (next_overlay
< endpos
)
6264 endpos
= next_overlay
;
6269 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6271 /* Optimize common cases where we can use the default face. */
6274 && !(pos
>= region_beg
&& pos
< region_end
)
6276 || !FRAME_WINDOW_P (f
)
6277 || FACE_SUITABLE_FOR_CHARSET_P (default_face
, -1)))
6278 return DEFAULT_FACE_ID
;
6280 /* Begin with attributes from the default face. */
6281 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6283 /* Merge in attributes specified via text properties. */
6285 merge_face_vector_with_property (f
, attrs
, prop
);
6287 /* Now merge the overlay data. */
6288 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6289 for (i
= 0; i
< noverlays
; i
++)
6294 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6296 merge_face_vector_with_property (f
, attrs
, prop
);
6298 oend
= OVERLAY_END (overlay_vec
[i
]);
6299 oendpos
= OVERLAY_POSITION (oend
);
6300 if (oendpos
< endpos
)
6304 /* If in the region, merge in the region face. */
6305 if (pos
>= region_beg
&& pos
< region_end
)
6307 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6308 merge_face_vectors (XVECTOR (region_face
)->contents
, attrs
);
6310 if (region_end
< endpos
)
6311 endpos
= region_end
;
6316 /* Look up a realized face with the given face attributes,
6317 or realize a new one. Charset is ignored for tty frames. */
6318 return lookup_face (f
, attrs
, multibyte_p
? CHARSET_ASCII
: -1);
6322 /* Compute the face at character position POS in Lisp string STRING on
6323 window W, for charset CHARSET_ASCII.
6325 If STRING is an overlay string, it comes from position BUFPOS in
6326 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6327 not an overlay string. W must display the current buffer.
6328 REGION_BEG and REGION_END give the start and end positions of the
6329 region; both are -1 if no region is visible. BASE_FACE_ID is the
6330 id of the basic face to merge with. It is usually equal to
6331 DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID
6332 for strings displayed in the mode or top line.
6334 Set *ENDPTR to the next position where to check for faces in
6335 STRING; -1 if the face is constant from POS to the end of the
6338 Value is the id of the face to use. The face returned is suitable
6339 for displaying CHARSET_ASCII if STRING is multibyte. Otherwise,
6340 the face is suitable for displaying unibyte text. */
6343 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6344 region_end
, endptr
, base_face_id
)
6348 int region_beg
, region_end
;
6350 enum face_id base_face_id
;
6352 Lisp_Object prop
, position
, end
, limit
;
6353 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6354 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6355 struct face
*base_face
;
6356 int multibyte_p
= STRING_MULTIBYTE (string
);
6358 /* Get the value of the face property at the current position within
6359 STRING. Value is nil if there is no face property. */
6360 XSETFASTINT (position
, pos
);
6361 prop
= Fget_text_property (position
, Qface
, string
);
6363 /* Get the next position at which to check for faces. Value of end
6364 is nil if face is constant all the way to the end of the string.
6365 Otherwise it is a string position where to check faces next.
6366 Limit is the maximum position up to which to check for property
6367 changes in Fnext_single_property_change. Strings are usually
6368 short, so set the limit to the end of the string. */
6369 XSETFASTINT (limit
, XSTRING (string
)->size
);
6370 end
= Fnext_single_property_change (position
, Qface
, string
, limit
);
6372 *endptr
= XFASTINT (end
);
6376 base_face
= FACE_FROM_ID (f
, base_face_id
);
6377 xassert (base_face
);
6379 /* Optimize the default case that there is no face property and we
6380 are not in the region. */
6382 && (base_face_id
!= DEFAULT_FACE_ID
6383 /* BUFPOS <= 0 means STRING is not an overlay string, so
6384 that the region doesn't have to be taken into account. */
6386 || bufpos
< region_beg
6387 || bufpos
>= region_end
)
6389 /* We can't realize faces for different charsets differently
6390 if we don't have fonts, so we can stop here if not working
6391 on a window-system frame. */
6392 || !FRAME_WINDOW_P (f
)
6393 || FACE_SUITABLE_FOR_CHARSET_P (base_face
, -1)))
6394 return base_face
->id
;
6396 /* Begin with attributes from the base face. */
6397 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6399 /* Merge in attributes specified via text properties. */
6401 merge_face_vector_with_property (f
, attrs
, prop
);
6403 /* If in the region, merge in the region face. */
6405 && bufpos
>= region_beg
6406 && bufpos
< region_end
)
6408 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6409 merge_face_vectors (XVECTOR (region_face
)->contents
, attrs
);
6412 /* Look up a realized face with the given face attributes,
6413 or realize a new one. */
6414 return lookup_face (f
, attrs
, multibyte_p
? CHARSET_ASCII
: -1);
6419 /***********************************************************************
6421 ***********************************************************************/
6425 /* Print the contents of the realized face FACE to stderr. */
6428 dump_realized_face (face
)
6431 fprintf (stderr
, "ID: %d\n", face
->id
);
6432 #ifdef HAVE_X_WINDOWS
6433 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
6435 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6437 XSTRING (face
->lface
[LFACE_FOREGROUND_INDEX
])->data
);
6438 fprintf (stderr
, "background: 0x%lx (%s)\n",
6440 XSTRING (face
->lface
[LFACE_BACKGROUND_INDEX
])->data
);
6441 fprintf (stderr
, "font_name: %s (%s)\n",
6443 XSTRING (face
->lface
[LFACE_FAMILY_INDEX
])->data
);
6444 #ifdef HAVE_X_WINDOWS
6445 fprintf (stderr
, "font = %p\n", face
->font
);
6447 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
6448 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6449 fprintf (stderr
, "underline: %d (%s)\n",
6451 XSTRING (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
]))->data
);
6452 fprintf (stderr
, "hash: %d\n", face
->hash
);
6453 fprintf (stderr
, "charset: %d\n", face
->charset
);
6457 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, "")
6465 fprintf (stderr
, "font selection order: ");
6466 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6467 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6468 fprintf (stderr
, "\n");
6470 fprintf (stderr
, "alternative fonts: ");
6471 debug_print (Vface_alternative_font_family_alist
);
6472 fprintf (stderr
, "\n");
6474 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6475 Fdump_face (make_number (i
));
6480 CHECK_NUMBER (n
, 0);
6481 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6483 error ("Not a valid face");
6484 dump_realized_face (face
);
6491 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6495 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6496 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6497 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6501 #endif /* GLYPH_DEBUG != 0 */
6505 /***********************************************************************
6507 ***********************************************************************/
6512 Qface
= intern ("face");
6514 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6515 staticpro (&Qbitmap_spec_p
);
6516 Qframe_update_face_colors
= intern ("frame-update-face-colors");
6517 staticpro (&Qframe_update_face_colors
);
6519 /* Lisp face attribute keywords. */
6520 QCfamily
= intern (":family");
6521 staticpro (&QCfamily
);
6522 QCheight
= intern (":height");
6523 staticpro (&QCheight
);
6524 QCweight
= intern (":weight");
6525 staticpro (&QCweight
);
6526 QCslant
= intern (":slant");
6527 staticpro (&QCslant
);
6528 QCunderline
= intern (":underline");
6529 staticpro (&QCunderline
);
6530 QCinverse_video
= intern (":inverse-video");
6531 staticpro (&QCinverse_video
);
6532 QCreverse_video
= intern (":reverse-video");
6533 staticpro (&QCreverse_video
);
6534 QCforeground
= intern (":foreground");
6535 staticpro (&QCforeground
);
6536 QCbackground
= intern (":background");
6537 staticpro (&QCbackground
);
6538 QCstipple
= intern (":stipple");;
6539 staticpro (&QCstipple
);
6540 QCwidth
= intern (":width");
6541 staticpro (&QCwidth
);
6542 QCfont
= intern (":font");
6543 staticpro (&QCfont
);
6544 QCbold
= intern (":bold");
6545 staticpro (&QCbold
);
6546 QCitalic
= intern (":italic");
6547 staticpro (&QCitalic
);
6548 QCoverline
= intern (":overline");
6549 staticpro (&QCoverline
);
6550 QCstrike_through
= intern (":strike-through");
6551 staticpro (&QCstrike_through
);
6552 QCbox
= intern (":box");
6555 /* Symbols used for Lisp face attribute values. */
6556 QCcolor
= intern (":color");
6557 staticpro (&QCcolor
);
6558 QCline_width
= intern (":line-width");
6559 staticpro (&QCline_width
);
6560 QCstyle
= intern (":style");
6561 staticpro (&QCstyle
);
6562 Qreleased_button
= intern ("released-button");
6563 staticpro (&Qreleased_button
);
6564 Qpressed_button
= intern ("pressed-button");
6565 staticpro (&Qpressed_button
);
6566 Qnormal
= intern ("normal");
6567 staticpro (&Qnormal
);
6568 Qultra_light
= intern ("ultra-light");
6569 staticpro (&Qultra_light
);
6570 Qextra_light
= intern ("extra-light");
6571 staticpro (&Qextra_light
);
6572 Qlight
= intern ("light");
6573 staticpro (&Qlight
);
6574 Qsemi_light
= intern ("semi-light");
6575 staticpro (&Qsemi_light
);
6576 Qsemi_bold
= intern ("semi-bold");
6577 staticpro (&Qsemi_bold
);
6578 Qbold
= intern ("bold");
6580 Qextra_bold
= intern ("extra-bold");
6581 staticpro (&Qextra_bold
);
6582 Qultra_bold
= intern ("ultra-bold");
6583 staticpro (&Qultra_bold
);
6584 Qoblique
= intern ("oblique");
6585 staticpro (&Qoblique
);
6586 Qitalic
= intern ("italic");
6587 staticpro (&Qitalic
);
6588 Qreverse_oblique
= intern ("reverse-oblique");
6589 staticpro (&Qreverse_oblique
);
6590 Qreverse_italic
= intern ("reverse-italic");
6591 staticpro (&Qreverse_italic
);
6592 Qultra_condensed
= intern ("ultra-condensed");
6593 staticpro (&Qultra_condensed
);
6594 Qextra_condensed
= intern ("extra-condensed");
6595 staticpro (&Qextra_condensed
);
6596 Qcondensed
= intern ("condensed");
6597 staticpro (&Qcondensed
);
6598 Qsemi_condensed
= intern ("semi-condensed");
6599 staticpro (&Qsemi_condensed
);
6600 Qsemi_expanded
= intern ("semi-expanded");
6601 staticpro (&Qsemi_expanded
);
6602 Qexpanded
= intern ("expanded");
6603 staticpro (&Qexpanded
);
6604 Qextra_expanded
= intern ("extra-expanded");
6605 staticpro (&Qextra_expanded
);
6606 Qultra_expanded
= intern ("ultra-expanded");
6607 staticpro (&Qultra_expanded
);
6608 Qbackground_color
= intern ("background-color");
6609 staticpro (&Qbackground_color
);
6610 Qforeground_color
= intern ("foreground-color");
6611 staticpro (&Qforeground_color
);
6612 Qunspecified
= intern ("unspecified");
6613 staticpro (&Qunspecified
);
6615 Qx_charset_registry
= intern ("x-charset-registry");
6616 staticpro (&Qx_charset_registry
);
6617 Qface_alias
= intern ("face-alias");
6618 staticpro (&Qface_alias
);
6619 Qdefault
= intern ("default");
6620 staticpro (&Qdefault
);
6621 Qtool_bar
= intern ("tool-bar");
6622 staticpro (&Qtool_bar
);
6623 Qregion
= intern ("region");
6624 staticpro (&Qregion
);
6625 Qfringe
= intern ("fringe");
6626 staticpro (&Qfringe
);
6627 Qheader_line
= intern ("header-line");
6628 staticpro (&Qheader_line
);
6629 Qscroll_bar
= intern ("scroll-bar");
6630 staticpro (&Qscroll_bar
);
6631 Qmenu
= intern ("menu");
6633 Qcursor
= intern ("cursor");
6634 staticpro (&Qcursor
);
6635 Qborder
= intern ("border");
6636 staticpro (&Qborder
);
6637 Qmouse
= intern ("mouse");
6638 staticpro (&Qmouse
);
6639 Qtty_color_desc
= intern ("tty-color-desc");
6640 staticpro (&Qtty_color_desc
);
6641 Qtty_color_by_index
= intern ("tty-color-by-index");
6642 staticpro (&Qtty_color_by_index
);
6644 defsubr (&Sinternal_make_lisp_face
);
6645 defsubr (&Sinternal_lisp_face_p
);
6646 defsubr (&Sinternal_set_lisp_face_attribute
);
6647 #ifdef HAVE_X_WINDOWS
6648 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6649 defsubr (&Sface_color_gray_p
);
6650 defsubr (&Sface_color_supported_p
);
6652 defsubr (&Sinternal_get_lisp_face_attribute
);
6653 defsubr (&Sinternal_lisp_face_attribute_values
);
6654 defsubr (&Sinternal_lisp_face_equal_p
);
6655 defsubr (&Sinternal_lisp_face_empty_p
);
6656 defsubr (&Sinternal_copy_lisp_face
);
6657 defsubr (&Sinternal_merge_in_global_face
);
6658 defsubr (&Sface_font
);
6659 defsubr (&Sframe_face_alist
);
6660 defsubr (&Sinternal_set_font_selection_order
);
6661 defsubr (&Sinternal_set_alternative_font_family_alist
);
6663 defsubr (&Sdump_face
);
6664 defsubr (&Sshow_face_resources
);
6665 #endif /* GLYPH_DEBUG */
6666 defsubr (&Sclear_face_cache
);
6668 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6669 "*Limit for font matching.\n\
6670 If an integer > 0, font matching functions won't load more than\n\
6671 that number of fonts when searching for a matching font.");
6672 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6674 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
6675 "List of global face definitions (for internal use only.)");
6676 Vface_new_frame_defaults
= Qnil
;
6678 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
6679 "*Default stipple pattern used on monochrome displays.\n\
6680 This stipple pattern is used on monochrome displays\n\
6681 instead of shades of gray for a face background color.\n\
6682 See `set-face-stipple' for possible values for this variable.");
6683 Vface_default_stipple
= build_string ("gray3");
6685 DEFVAR_LISP ("face-default-registry", &Vface_default_registry
,
6686 "Default registry and encoding to use.\n\
6687 This registry and encoding is used for unibyte text. It is set up\n\
6688 from the specified frame font when Emacs starts. (For internal use only.)");
6689 Vface_default_registry
= Qnil
;
6691 DEFVAR_LISP ("face-alternative-font-family-alist",
6692 &Vface_alternative_font_family_alist
, "");
6693 Vface_alternative_font_family_alist
= Qnil
;
6697 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
6698 "Allowed scalable fonts.\n\
6699 A value of nil means don't allow any scalable fonts.\n\
6700 A value of t means allow any scalable font.\n\
6701 Otherwise, value must be a list of regular expressions. A font may be\n\
6702 scaled if its name matches a regular expression in the list.");
6703 Vscalable_fonts_allowed
= Qnil
;
6705 #endif /* SCALABLE_FONTS */
6707 #ifdef HAVE_X_WINDOWS
6708 defsubr (&Sbitmap_spec_p
);
6709 defsubr (&Sx_list_fonts
);
6710 defsubr (&Sinternal_face_x_get_resource
);
6711 defsubr (&Sx_family_fonts
);
6712 defsubr (&Sx_font_family_list
);
6713 #endif /* HAVE_X_WINDOWS */